| A— | State | District | Since | Party | % | Grade |
|---|---|---|---|---|---|---|
| Abercrombie, Neil | Hawaii | 1st | 1991 | Democratic | 100 | A+ |
| Ackerman, Gary | New York | 5th | 1983 | Democratic | 100 | A+ |
| Aderholt, Robert | Alabama | 4th | 1997 | Republican | 22 | F |
| Adler, John | New Jersey | 3rd | 2003 | Democratic | 83 | A |
| Akaka, Daniel | Hawaii | 1991 | Democratic | 100 | A+ | |
| Akin, Todd | Missouri | 2nd | 2001 | Republican | 6 | F |
| Alexander, Rodney | Louisiana | 5th | 2003 | Republican | 22 | F |
| Alexander, Lamar | Tennessee | 2003 | Republican | 29 | D | |
| Altmire, Jason | Pennsylvania | 4th | 2007 | Democratic | 83 | A |
| Andrews, Rob | New Jersey | 1st | 1990 | Democratic | 100 | A+ |
| Arcuri, Michael | New York | 24th | 2007 | Democratic | 89 | A |
| Austria, Steve | Ohio | 7th | 1969 | Republican | 39 | D |
| B— | State | District | Since | Party | % | Grade |
| Baca, Joe | California | 43rd | 1999 | Democratic | 100 | A+ |
| Bachmann, Michele | Minnesota | 6th | 2007 | Republican | 12 | F |
| Bachus, Spencer | Alabama | 6th | 1993 | Republican | 22 | F |
| Baird, Brian | Washington | 3rd | 1999 | Democratic | 88 | A |
| Baldwin, Tammy | Wisconsin | 2nd | 1999 | Democratic | 100 | A+ |
| Barrasso, John | Wyoming | 2007 | Republican | 14 | F | |
| Barrett, Gresham | South Carolina | 3rd | 2003 | Republican | 7 | F |
| Barrow, John | Georgia | 12th | 2005 | Democratic | 89 | A |
| Bartlett, Roscoe | Maryland | 6th | 1993 | Republican | 17 | F |
| Barton, Joe | Texas | 6th | 1985 | Republican | 11 | F |
| Baucus, Max | Montana | 1979 | Democratic | 71 | B | |
| Bayh, Evan | Indiana | 1999 | Democratic | 86 | A | |
| Bean, Melissa | Illinois | 8th | 2005 | Democratic | 94 | A |
| Becerra, Xavier | California | 31st | 1993 | Democratic | 100 | A+ |
| Begich, Mark | Alaska | 2009 | Democratic | 93 | A | |
| Bennet, Michael | Colorado | 2009 | Democratic | 86 | A | |
| Bennett, Robert | Utah | 1993 | Republican | 21 | F | |
| Berkley, Shelley | Nevada | 1st | 1999 | Democratic | 100 | A+ |
| Berman, Howard | California | 28th | 1983 | Democratic | 100 | A+ |
| Berry, Marion | Arkansas | 1st | 1997 | Democratic | 87 | A |
| Biggert, Judy | Illinois | 13th | 1999 | Republican | 33 | D |
| Bilbray, Brian | California | 50th | 2006 | Republican | 33 | D |
| Bilirakis, Gus | Florida | 9th | 2007 | Republican | 33 | D |
| Bingaman, Jeff | New Mexico | 1983 | Democratic | 93 | A | |
| Bishop, Tim | New York | 1st | 2003 | Democratic | 100 | A+ |
| Bishop, Rob | Utah | 1st | 2003 | Republican | 18 | F |
| Bishop, Sanford | Georgia | 2nd | 1993 | Democratic | 100 | A+ |
| Blackburn, Marsha | Tennessee | 7th | 2003 | Republican | 6 | F |
| Blumenauer, Earl | Oregon | 3rd | 1996 | Democratic | 100 | A+ |
| Blunt, Roy | Missouri | 7th | 1997 | Republican | 19 | F |
| Boccieri, John | Ohio | 16th | 1969 | Democratic | 94 | A |
| Boehner, John | Ohio | 8th | 1991 | Republican | 11 | F |
| Bond, Kit | Missouri | 1987 | Republican | 31 | D | |
| Bonner, Jo | Alabama | 1st | 2003 | Republican | 17 | F |
| Boozman, John | Arkansas | 3rd | 2001 | Republican | 22 | F |
| Boren, Dan | Oklahoma | 2nd | 2005 | Democratic | 72 | B |
| Boswell, Leonard | Iowa | 3rd | 1997 | Democratic | 100 | A+ |
| Boucher, Rick | Virginia | 9th | 1983 | Democratic | 94 | A |
| Boustany, Charles | Louisiana | 7th | 2005 | Republican | 24 | F |
| Boxer, Barbara | California | 1993 | Democratic | 93 | A | |
| Boyd, Allen | Florida | 2nd | 1997 | Democratic | 81 | A |
| Brady, Bob | Pennsylvania | 1st | 1998 | Democratic | 100 | A+ |
| Brady, Kevin | Texas | 8th | 1997 | Republican | 6 | F |
| Braley, Bruce | Iowa | 1st | 2007 | Democratic | 100 | A+ |
| Bright, Bobby Neal | Alabama | 2nd | 2001 | Democratic | 44 | C |
| Broun, Paul | Georgia | 10th | 2007 | Republican | 0 | F- |
| Brown, Sherrod | Ohio | 2007 | Democratic | 100 | A+ | |
| Brown, Henry | South Carolina | 1st | 2001 | Republican | 24 | F |
| Brown, Corrine | Florida | 3rd | 1993 | Democratic | 100 | A+ |
| Brown-Waite, Ginny | Florida | 5th | 2003 | Republican | 41 | C |
| Brownback, Sam | Kansas | 1996 | Republican | 14 | F | |
| Buchanan, Vern | Florida | 13th | 2007 | Republican | 44 | C |
| Bunning, Jim | Kentucky | 1999 | Republican | 8 | F | |
| Burgess, Michael | Texas | 26th | 2003 | Republican | 17 | F |
| Burr, Richard | North Carolina | 2005 | Republican | 21 | F | |
| Burris, Roland | Illinois | 2009 | Democratic | 100 | A+ | |
| Burton, Dan | Indiana | 5th | 1983 | Republican | 17 | F |
| Butterfield, G.K. | North Carolina | 1st | 2004 | Democratic | 100 | A+ |
| Buyer, Steve | Indiana | 4th | 1993 | Republican | 38 | D |
| Byrd, Robert | West Virginia | 1959 | Democratic | 80 | B | |
| C— | State | District | Since | Party | % | Grade |
| Calvert, Ken | California | 44th | 1993 | Republican | 33 | D |
| Camp, Dave | Michigan | 4th | 1991 | Republican | 29 | D |
| Campbell, John | California | 48th | 2005 | Republican | 6 | F |
| Cantor, Eric | Virginia | 7th | 2001 | Republican | 17 | F |
| Cantwell, Maria | Washington | 2001 | Democratic | 100 | A+ | |
| Cao, Joseph | Louisiana | 2nd | 1995 | Republican | 67 | B |
| Capito, Shelley Moore | West Virginia | 2nd | 2001 | Republican | 44 | C |
| Capps, Lois | California | 23rd | 1998 | Democratic | 100 | A+ |
| Capuano, Mike | Massachusetts | 8th | 1999 | Democratic | 100 | A+ |
| Cardin, Ben | Maryland | 2007 | Democratic | 100 | A+ | |
| Cardoza, Dennis | California | 18th | 2003 | Democratic | 100 | A+ |
| Carnahan, Russ | Missouri | 3rd | 2005 | Democratic | 100 | A+ |
| Carney, Chris | Pennsylvania | 10th | 2007 | Democratic | 89 | A |
| Carper, Tom | Delaware | 2001 | Democratic | 93 | A | |
| Carson, André | Indiana | 7th | 2008 | Democratic | 100 | A+ |
| Carter, John | Texas | 31st | 2003 | Republican | 12 | F |
| Casey, Bob | Pennsylvania | 2007 | Democratic | 100 | A+ | |
| Cassidy, Bill | Louisiana | 6th | 1995 | Republican | 28 | D |
| Castle, Michael | Delaware | 1993 | Republican | 56 | C | |
| Castor, Kathy | Florida | 11th | 2007 | Democratic | 100 | A+ |
| Chaffetz, Jason | Utah | 3rd | 1987 | Republican | 6 | F |
| Chambliss, Saxby | Georgia | 2003 | Republican | 21 | F | |
| Chandler, Ben | Kentucky | 6th | 2004 | Democratic | 94 | A |
| Childers, Travis | Mississippi | 1st | 2008 | Democratic | 72 | B |
| Chu (Solis), Judy | California | 32nd | 1959 | Democratic | Not ranked | |
| Clarke, Yvette | New York | 11th | 2007 | Democratic | 100 | A+ |
| Clay, William "Lacy" | Missouri | 1st | 2001 | Democratic | 100 | A+ |
| Cleaver, Emanuel | Missouri | 5th | 2005 | Democratic | 100 | A+ |
| Clyburn, Jim | South Carolina | 6th | 1993 | Democratic | 100 | A+ |
| Coble, Howard | North Carolina | 6th | 1985 | Republican | 17 | F |
| Coburn, Tom | Oklahoma | 2005 | Republican | 8 | F | |
| Cochran, Thad | Mississippi | 1979 | Republican | 43 | C | |
| Coffman, Michael | Colorado | 6th | 1997 | Republican | 17 | F |
| Cohen, Steve | Tennessee | 9th | 2007 | Democratic | 100 | A+ |
| Cole, Tom | Oklahoma | 4th | 2003 | Republican | 28 | D |
| Collins, Susan | Maine | 1997 | Republican | 64 | B | |
| Conaway, Mike | Texas | 11th | 2005 | Republican | 6 | F |
| Connolly, Gerry | Virginia | 11th | 1993 | Democratic | 100 | A+ |
| Conrad, Kent | North Dakota | 1987 | Democratic | 86 | A | |
| Conyers, John | Michigan | 14th | 1965 | Democratic | 100 | A+ |
| Cooper, Jim | Tennessee | 5th | 2003 | Democratic | 94 | A |
| Corker, Bob | Tennessee | 2007 | Republican | 29 | D | |
| Cornyn, John | Texas | 2003 | Republican | 14 | F | |
| Costa, Jim | California | 20th | 2005 | Democratic | 94 | A |
| Costello, Jerry | Illinois | 12th | 1988 | Democratic | 89 | A |
| Courtney, Joe | Connecticut | 2nd | 2007 | Democratic | 100 | A+ |
| Crapo, Mike | Idaho | 1999 | Republican | 14 | F | |
| Crenshaw, Ander | Florida | 4th | 2001 | Republican | 28 | D |
| Crowley, Joseph | New York | 7th | 1999 | Democratic | 100 | A+ |
| Cuellar, Henry | Texas | 28th | 2005 | Democratic | 100 | A+ |
| Culberson, John | Texas | 7th | 2001 | Republican | 22 | F |
| Cummings, Elijah | Maryland | 7th | 1996 | Democratic | 100 | A+ |
| D— | State | District | Since | Party | % | Grade |
| Dahlkemper, Kathy | Pennsylvania | 3rd | 2001 | Democratic | 89 | A |
| Davis, Danny | Illinois | 7th | 1997 | Democratic | 100 | A+ |
| Davis, Lincoln | Tennessee | 4th | 2003 | Democratic | 89 | A |
| Davis, Artur | Alabama | 7th | 2003 | Democratic | 89 | A |
| Davis, Susan | California | 53rd | 2001 | Democratic | 100 | A+ |
| Davis, Geoff | Kentucky | 4th | 2005 | Republican | 17 | F |
| Deal, Nathan | Georgia | 9th | 1993 | Republican | 6 | F |
| DeFazio, Peter | Oregon | 4th | 1987 | Democratic | 89 | A |
| DeGette, Diana | Colorado | 1st | 1997 | Democratic | 100 | A+ |
| Delahunt, Bill | Massachusetts | 10th | 1997 | Democratic | 100 | A+ |
| DeLauro, Rosa | Connecticut | 3rd | 1991 | Democratic | 100 | A+ |
| DeMint, Jim | South Carolina | 2005 | Republican | 8 | F | |
| Dent, Charlie | Pennsylvania | 15th | 2005 | Republican | 50 | C |
| Diaz-Balart, Lincoln | Florida | 21st | 1993 | Republican | 56 | C |
| Diaz-Balart, Mario | Florida | 25th | 2003 | Republican | 53 | C |
| Dicks, Norm | Washington | 6th | 1977 | Democratic | 100 | A+ |
| Dingell, John | Michigan | 15th | 1955 | Democratic | 100 | A+ |
| Dodd, Chris | Connecticut | 1981 | Democratic | 93 | A | |
| Doggett, Lloyd | Texas | 25th | 1995 | Democratic | 100 | A+ |
| Donnelly, Joe | Indiana | 2nd | 2007 | Democratic | 83 | A |
| Dorgan, Byron | North Dakota | 1993 | Democratic | 75 | B | |
| Doyle, Mike | Pennsylvania | 14th | 1995 | Democratic | 100 | A+ |
| Dreier, David | California | 26th | 1981 | Republican | 28 | D |
| Driehaus, Steve | Ohio | 1st | 1969 | Democratic | 89 | A |
| Duncan, Jimmy | Tennessee | 2nd | 1988 | Republican | 11 | F |
| Durbin, Dick | Illinois | 1997 | Democratic | 93 | A | |
| E— | State | District | Since | Party | % | Grade |
| Edwards, Chet | Texas | 17th | 1991 | Democratic | 89 | A |
| Edwards, Donna | Maryland | 4th | 2008 | Democratic | 100 | A+ |
| Ehlers, Vern | Michigan | 3rd | 1993 | Republican | 44 | C |
| Ellison, Keith | Minnesota | 5th | 2007 | Democratic-Farmer-Labor | 100 | A+ |
| Ellsworth, Brad | Indiana | 8th | 2007 | Democratic | 89 | A |
| Emerson, Jo Ann | Missouri | 8th | 1996 | Republican | 39 | D |
| Engel, Eliot | New York | 17th | 1989 | Democratic | 100 | A+ |
| Ensign, John | Nevada | 2001 | Republican | 8 | F | |
| Enzi, Mike | Wyoming | 1997 | Republican | 21 | F | |
| Eshoo, Anna | California | 14th | 1993 | Democratic | 100 | A+ |
| Etheridge, Bob | North Carolina | 2nd | 1997 | Democratic | 100 | A+ |
| F— | State | District | Since | Party | % | Grade |
| Fallin, Mary | Oklahoma | 5th | 2007 | Republican | 22 | F |
| Farr, Sam | California | 17th | 1993 | Democratic | 100 | A+ |
| Fattah, Chaka | Pennsylvania | 2nd | 1995 | Democratic | 100 | A+ |
| Feingold, Russ | Wisconsin | 1993 | Democratic | 86 | A | |
| Feinstein, Dianne | California | 1992 | Democratic | 93 | A | |
| Filner, Bob | California | 51st | 1993 | Democratic | 100 | A+ |
| Flake, Jeff | Arizona | 6th | 2001 | Republican | 0 | F- |
| Fleming, John | Louisiana | 4th | 1995 | Republican | 22 | F |
| Forbes, Randy | Virginia | 4th | 2001 | Republican | 28 | D |
| Fortenberry, Jeff | Nebraska | 1st | 2005 | Republican | 44 | C |
| Foster, Bill | Illinois | 14th | 2008 | Democratic | 94 | A |
| Foxx, Virginia | North Carolina | 5th | 2005 | Republican | 0 | F- |
| Frank, Barney | Massachusetts | 4th | 1981 | Democratic | 100 | A+ |
| Franken, Al | Minnesota | 2009 | Democratic | Not ranked | ||
| Franks, Trent | Arizona | 2nd | 2003 | Republican | 6 | F |
| Frelinghuysen, Rodney | New Jersey | 11th | 1995 | Republican | 33 | D |
| Fudge, Marcia | Ohio | 11th | 2000 | Democratic | 100 | A+ |
| G— | State | District | Since | Party | % | Grade |
| Gallegly, Elton | California | 24th | 1987 | Republican | 29 | D |
| Garamendi (Tauscher), John | California | 10th | 1959 | Democratic | Not ranked | |
| Garrett, Scott | New Jersey | 5th | 2003 | Republican | 6 | F |
| Gerlach, Jim | Pennsylvania | 6th | 2003 | Republican | 50 | C |
| Giffords, Gabrielle | Arizona | 8th | 2007 | Democratic | 100 | A+ |
| Gillibrand, Kirsten | New York | 2007 | Democratic | 92 | A | |
| Gingrey, Phil | Georgia | 11th | 2003 | Republican | 11 | F |
| Gohmert, Louie | Texas | 1st | 2005 | Republican | 12 | F |
| Gonzalez, Charlie | Texas | 20th | 1999 | Democratic | 100 | A+ |
| Goodlatte, Bob | Virginia | 6th | 1993 | Republican | 22 | F |
| Gordon, Bart | Tennessee | 6th | 1985 | Democratic | 89 | A |
| Graham, Lindsey | South Carolina | 2003 | Republican | 21 | F | |
| Granger, Kay | Texas | 12th | 1999 | Republican | 25 | F |
| Grassley, Chuck | Iowa | 1981 | Republican | 21 | F | |
| Graves, Sam | Missouri | 6th | 2001 | Republican | 24 | F |
| Grayson, Alan | Florida | 8th | 2009 | Democratic | 100 | A+ |
| Green, Al | Texas | 9th | 2005 | Democratic | 100 | A+ |
| Green, Gene | Texas | 29th | 1993 | Democratic | 100 | A+ |
| Gregg, Judd | New Hampshire | 1993 | Republican | 21 | F | |
| Griffith, Parker | Alabama | 5th | 2001 | Democratic | 72 | B |
| Grijalva, Raúl | Arizona | 7th | 2003 | Democratic | 100 | A+ |
| Guthrie, Brett | Kentucky | 2nd | 1995 | Republican | 28 | D |
| Gutierrez, Luis | Illinois | 4th | 1993 | Democratic | 100 | A+ |
| H— | State | District | Since | Party | % | Grade |
| Hagan, Kay | North Carolina | 2005 | Democratic | 86 | A | |
| Hall, Ralph | Texas | 4th | 1981 | Republican | 17 | F |
| Hall, John | New York | 19th | 2007 | Democratic | 100 | A+ |
| Halvorson, Deborah | Illinois | 11th | 1993 | Democratic | 100 | A+ |
| Hare, Phil | Illinois | 17th | 2007 | Democratic | 100 | A+ |
| Harkin, Tom | Iowa | 1985 | Democratic | 100 | A+ | |
| Harman, Jane | California | 36th | 2001 | Democratic | 100 | A+ |
| Harper, Greg | Mississippi | 3rd | 2009 | Republican | 17 | F |
| Hastings, Alcee | Florida | 23rd | 1993 | Democratic | 100 | A+ |
| Hastings, Doc | Washington | 4th | 1995 | Republican | 11 | F |
| Hatch, Orrin | Utah | 1977 | Republican | 36 | D | |
| Heinrich, Martin | New Mexico | 1st | 2003 | Democratic | 94 | A |
| Heller, Dean | Nevada | 2nd | 2007 | Republican | 25 | F |
| Hensarling, Jeb | Texas | 5th | 2003 | Republican | 0 | F- |
| Herger, Wally | California | 2nd | 1987 | Republican | 17 | F |
| Higgins, Brian | New York | 27th | 2005 | Democratic | 100 | A+ |
| Hill, Baron | Indiana | 9th | 2007 | Democratic | 100 | A+ |
| Himes, James | Connecticut | 4th | 2005 | Democratic | 94 | A |
| Hinchey, Maurice | New York | 22nd | 1993 | Democratic | 100 | A+ |
| Hinojosa, Rubén | Texas | 15th | 1997 | Democratic | 100 | A+ |
| Hirono, Mazie | Hawaii | 2nd | 2007 | Democratic | 100 | A+ |
| Hodes, Paul | New Hampshire | 2nd | 2007 | Democratic | 100 | A+ |
| Hoekstra, Pete | Michigan | 2nd | 1993 | Republican | 22 | F |
| Holden, Tim | Pennsylvania | 17th | 1993 | Democratic | 89 | A |
| Holt, Rush | New Jersey | 12th | 1999 | Democratic | 100 | A+ |
| Honda, Mike | California | 15th | 2001 | Democratic | 100 | A+ |
| Hoyer, Steny | Maryland | 5th | 1981 | Democratic | 100 | A+ |
| Hunter, Duncan | California | 52nd | 1981 | Republican | 22 | F |
| Hutchison, Kay Bailey | Texas | 1993 | Republican | 43 | C | |
| I— | State | District | Since | Party | % | Grade |
| Inglis, Bob | South Carolina | 4th | 2005 | Republican | 6 | F |
| Inhofe, Jim | Oklahoma | 1995 | Republican | 8 | F | |
| Inouye, Daniel | Hawaii | 1963 | Democratic | 100 | A+ | |
| Inslee, Jay | Washington | 1st | 1999 | Democratic | 100 | A+ |
| Isakson, Johnny | Georgia | 2005 | Republican | 21 | F | |
| Israel, Steve | New York | 2nd | 2001 | Democratic | 100 | A+ |
| Issa, Darrell | California | 49th | 2001 | Republican | 11 | F |
| J— | State | District | Since | Party | % | Grade |
| Jackson, Jesse | Illinois | 2nd | 1995 | Democratic | 100 | A+ |
| Jackson-Lee, Sheila | Texas | 18th | 1995 | Democratic | 100 | A+ |
| Jenkins, Lynn | Kansas | 2nd | 1985 | Republican | 17 | F |
| Johanns, Mike | Nebraska | 2001 | Republican | 29 | D | |
| Johnson, Tim | South Dakota | 1997 | Democratic | 83 | A | |
| Johnson, Eddie Bernice | Texas | 30th | 1991 | Democratic | 100 | A+ |
| Johnson, Tim | Illinois | 15th | 2001 | Republican | 56 | C |
| Johnson, Hank | Georgia | 4th | 2007 | Democratic | 100 | A+ |
| Johnson, Sam | Texas | 3rd | 1991 | Republican | 6 | F |
| Jones, Walter | North Carolina | 3rd | 1995 | Republican | 35 | D |
| Jordan, Jim | Ohio | 4th | 2007 | Republican | 6 | F |
| K— | State | District | Since | Party | % | Grade |
| Kagen, Steve | Wisconsin | 8th | 2007 | Democratic | 100 | A+ |
| Kanjorski, Paul | Pennsylvania | 11th | 1985 | Democratic | 89 | A |
| Kaptur, Marcy | Ohio | 9th | 1983 | Democratic | 100 | A+ |
| Kaufman, Ted | Delaware | 2009 | Democratic | 93 | A | |
| Kennedy, Patrick | Rhode Island | 1st | 1995 | Democratic | 100 | A+ |
| Kerry, John | Massachusetts | 1985 | Democratic | 100 | A+ | |
| Kildee, Dale | Michigan | 5th | 1977 | Democratic | 100 | A+ |
| Kilpatrick, Carolyn Cheeks | Michigan | 13th | 1997 | Democratic | 100 | A+ |
| Kilroy, Mary Jo | Ohio | 15th | 1969 | Democratic | 100 | A+ |
| Kind, Ron | Wisconsin | 3rd | 1997 | Democratic | 94 | A |
| King, Peter | New York | 3rd | 1993 | Republican | 50 | C |
| King, Steve | Iowa | 5th | 2003 | Republican | 0 | F- |
| Kingston, Jack | Georgia | 1st | 1993 | Republican | 6 | F |
| Kirk, Paul | Massachusetts | 2009 | Democratic | Not ranked | ||
| Kirk, Mark | Illinois | 10th | 2001 | Republican | 56 | C |
| Kirkpatrick, Ann | Arizona | 1st | 2007 | Democratic | 78 | B |
| Kissell, Larry | North Carolina | 8th | 2003 | Democratic | 89 | A |
| Klein, Ron | Florida | 22nd | 2007 | Democratic | 100 | A+ |
| Kline, John | Minnesota | 2nd | 2003 | Republican | 17 | F |
| Klobuchar, Amy | Minnesota | 2007 | Democratic | 86 | A | |
| Kohl, Herb | Wisconsin | 1989 | Democratic | 93 | A | |
| Kosmas, Suzanne | Florida | 24th | 2009 | Democratic | 83 | A |
| Kratovil, Frank | Maryland | 1st | 2005 | Democratic | 83 | A |
| Kucinich, Dennis | Ohio | 10th | 1997 | Democratic | 83 | A |
| Kyl, Jon | Arizona | 1995 | Republican | 7 | F | |
| L— | State | District | Since | Party | % | Grade |
| Lamborn, Doug | Colorado | 5th | 2007 | Republican | 6 | F |
| Lance, Leonard | New Jersey | 7th | 2003 | Republican | 61 | B |
| Landrieu, Mary | Louisiana | 1997 | Democratic | 86 | A | |
| Langevin, Jim | Rhode Island | 2nd | 2001 | Democratic | 100 | A+ |
| Larsen, Rick | Washington | 2nd | 2001 | Democratic | 100 | A+ |
| Larson, John | Connecticut | 1st | 1999 | Democratic | 100 | A+ |
| Latham, Tom | Iowa | 4th | 1995 | Republican | 33 | D |
| LaTourette, Steve | Ohio | 14th | 2003 | Republican | 56 | C |
| Latta, Bob | Ohio | 5th | 2007 | Republican | 11 | F |
| Lautenberg, Frank | New Jersey | 2003 | Democratic | 100 | A+ | |
| Leahy, Patrick | Vermont | 1975 | Democratic | 93 | A | |
| Lee, Barbara | California | 9th | 1998 | Democratic | 100 | A+ |
| Lee, Christopher | New York | 26th | 2003 | Republican | 35 | D |
| Lemieux, George | Florida | 2009 | Republican | Not ranked | ||
| Levin, Sander | Michigan | 12th | 1983 | Democratic | 100 | A+ |
| Levin, Carl | Michigan | 1979 | Democratic | 100 | A+ | |
| Lewis, Jerry | California | 41st | 1979 | Republican | 28 | D |
| Lewis, John | Georgia | 5th | 1987 | Democratic | 100 | A+ |
| Lieberman, Joe | Connecticut | 1989 | Democratic | 86 | A | |
| Lincoln, Blanche | Arkansas | 1999 | Democratic | 79 | B | |
| Linder, John | Georgia | 7th | 1993 | Republican | 6 | F |
| Lipinski, Dan | Illinois | 3rd | 2005 | Democratic | 94 | A |
| LoBiondo, Frank | New Jersey | 2nd | 2003 | Republican | 61 | B |
| Loebsack, David | Iowa | 2nd | 2007 | Democratic | 100 | A+ |
| Lofgren, Zoe | California | 16th | 1995 | Democratic | 94 | A |
| Lowey, Nita | New York | 18th | 1989 | Democratic | 100 | A+ |
| Lucas, Frank | Oklahoma | 3rd | 2003 | Republican | 22 | F |
| Luetkemeyer, Blaine | Missouri | 9th | 2009 | Republican | 22 | F |
| Lugar, Dick | Indiana | 1977 | Republican | 43 | C | |
| Lujan, Ben Ray | New Mexico | 3rd | 2003 | Democratic | 100 | A+ |
| Lummis, Cynthia | Wyoming | 1997 | Republican | 11 | F | |
| Lungren, Dan | California | 3rd | 2005 | Republican | 28 | D |
| Lynch, Stephen | Massachusetts | 9th | 2001 | Democratic | 100 | A+ |
| M— | State | District | Since | Party | % | Grade |
| Mack, Mary Bono | California | 45th | 1998 | Republican | 44 | C |
| Mack, Connie | Florida | 14th | 2005 | Republican | 11 | F |
| Maffei, Daniel | New York | 25th | 2003 | Democratic | 100 | A+ |
| Maloney, Carolyn | New York | 14th | 1993 | Democratic | 100 | A+ |
| Manzullo, Donald | Illinois | 16th | 1993 | Republican | 22 | F |
| Marchant, Kenny | Texas | 24th | 2005 | Republican | 6 | F |
| Markey, Ed | Massachusetts | 7th | 1976 | Democratic | 100 | A+ |
| Markey, Betsy | Colorado | 4th | 1997 | Democratic | 94 | A |
| Marshall, Jim | Georgia | 8th | 2005 | Democratic | 78 | B |
| Massa, Eric | New York | 29th | 2003 | Democratic | 83 | A |
| Matheson, Jim | Utah | 2nd | 2001 | Democratic | 83 | A |
| Matsui, Doris | California | 5th | 2005 | Democratic | 100 | A+ |
| McCain, John | Arizona | 1987 | Republican | 29 | D | |
| McCarthy, Kevin | California | 22nd | 2007 | Republican | 17 | F |
| McCarthy, Carolyn | New York | 4th | 1997 | Democratic | 100 | A+ |
| McCaskill, Claire | Missouri | 2007 | Democratic | 79 | B | |
| McCaul, Michael | Texas | 10th | 2005 | Republican | 28 | D |
| McClintock, Tom | California | 4th | 1959 | Republican | 0 | F- |
| McCollum, Betty | Minnesota | 4th | 2001 | Democratic-Farmer-Labor | 100 | A+ |
| McConnell, Mitch | Kentucky | 1985 | Republican | 14 | F | |
| McCotter, Thaddeus | Michigan | 11th | 2003 | Republican | 44 | C |
| McDermott, Jim | Washington | 7th | 1989 | Democratic | 100 | A+ |
| McGovern, Jim | Massachusetts | 3rd | 1997 | Democratic | 100 | A+ |
| McHenry, Patrick | North Carolina | 10th | 2005 | Republican | 11 | F |
| McIntyre, Mike | North Carolina | 7th | 1997 | Democratic | 89 | A |
| McKeon, Howard | California | 25th | 1993 | Republican | 28 | D |
| McMahon, Michael | New York | 13th | 2003 | Democratic | 89 | A |
| McNerney, Jerry | California | 11th | 2007 | Democratic | 100 | A+ |
| Meek, Kendrick | Florida | 17th | 2003 | Democratic | 100 | A+ |
| Meeks, Gregory | New York | 6th | 1999 | Democratic | 100 | A+ |
| Melancon, Charlie | Louisiana | 3rd | 2005 | Democratic | 83 | A |
| Menendez, Bob | New Jersey | 2006 | Democratic | 100 | A+ | |
| Merkley, Jeff | Oregon | 2009 | Democratic | 92 | A | |
| Mica, John | Florida | 7th | 1993 | Republican | 18 | F |
| Michaud, Mike | Maine | 2nd | 2001 | Democratic | 100 | A+ |
| Mikulski, Barbara | Maryland | 1987 | Democratic | 100 | A+ | |
| Miller, Brad | North Carolina | 13th | 2003 | Democratic | 100 | A+ |
| Miller, George | California | 7th | 1975 | Democratic | 100 | A+ |
| Miller, Jeff | Florida | 1st | 2001 | Republican | 11 | F |
| Miller, Candice | Michigan | 10th | 2003 | Republican | 44 | C |
| Miller, Gary | California | 42nd | 1999 | Republican | 20 | F |
| Minnick, Walt | Idaho | 1st | 1993 | Democratic | 61 | B |
| Mitchell, Harry | Arizona | 5th | 2007 | Democratic | 83 | A |
| Mollohan, Alan | West Virginia | 1st | 1983 | Democratic | 94 | A |
| Moore, Gwen | Wisconsin | 4th | 2005 | Democratic | 100 | A+ |
| Moore, Dennis | Kansas | 3rd | 1999 | Democratic | 100 | A+ |
| Moran, Jerry | Kansas | 1st | 1997 | Republican | 28 | D |
| Moran, Jim | Virginia | 8th | 1991 | Democratic | 100 | A+ |
| Murkowski, Lisa | Alaska | 2002 | Republican | 50 | C | |
| Murphy, Chris | Connecticut | 5th | 2007 | Democratic | 100 | A+ |
| Murphy, Patrick | Pennsylvania | 8th | 2007 | Democratic | 94 | A |
| Murphy, Tim | Pennsylvania | 18th | 2003 | Republican | 61 | B |
| Murphy (Gillibrand), Scott | New York | 20th | 2003 | Democratic | 91 | A |
| Murray, Patty | Washington | 1993 | Democratic | 100 | A+ | |
| Murtha, John | Pennsylvania | 12th | 1974 | Democratic | 100 | A+ |
| Myrick, Sue | North Carolina | 9th | 1995 | Republican | 11 | F |
| N— | State | District | Since | Party | % | Grade |
| Nadler, Jerrold | New York | 8th | 1993 | Democratic | 100 | A+ |
| Napolitano, Grace | California | 38th | 1999 | Democratic | 100 | A+ |
| Neal, Richard | Massachusetts | 2nd | 1989 | Democratic | 100 | A+ |
| Nelson, Bill | Florida | 2001 | Democratic | 93 | A | |
| Nelson, Ben | Nebraska | 2001 | Democratic | 79 | B | |
| Neugebauer, Randy | Texas | 19th | 2003 | Republican | 6 | F |
| Nunes, Devin | California | 21st | 2003 | Republican | 18 | F |
| Nye, Glenn | Virginia | 2nd | 1993 | Democratic | 83 | A |
| O— | State | District | Since | Party | % | Grade |
| Oberstar, Jim | Minnesota | 8th | 1975 | Democratic-Farmer-Labor | 100 | A+ |
| Obey, Dave | Wisconsin | 7th | 1969 | Democratic | 100 | A+ |
| Olson, Pete | Texas | 22nd | 2007 | Republican | 6 | F |
| Olver, John | Massachusetts | 1st | 1991 | Democratic | 100 | A+ |
| Ortiz, Solomon | Texas | 27th | 1983 | Democratic | 94 | A |
| Owens (McHugh), William | New York | 23rd | 2003 | Democratic | Not ranked | |
| P— | State | District | Since | Party | % | Grade |
| Pallone, Frank | New Jersey | 6th | 1989 | Democratic | 100 | A+ |
| Pascrell, Bill | New Jersey | 8th | 1989 | Democratic | 100 | A+ |
| Pastor, Ed | Arizona | 4th | 1991 | Democratic | 100 | A+ |
| Paul, Ron | Texas | 14th | 1997 | Republican | 0 | F- |
| Paulsen, Erik | Minnesota | 3rd | 2003 | Republican | 33 | D |
| Payne, Donald | New Jersey | 10th | 1989 | Democratic | 100 | A+ |
| Pelosi, Nancy | California | 8th | 1987 | Democratic | Not ranked | |
| Pence, Mike | Indiana | 6th | 2001 | Republican | 6 | F |
| Perlmutter, Ed | Colorado | 7th | 2007 | Democratic | 100 | A+ |
| Perriello, Tom | Virginia | 5th | 1993 | Democratic | 100 | A+ |
| Peters, Gary | Michigan | 9th | 2001 | Democratic | 94 | A |
| Peterson, Collin | Minnesota | 7th | 1991 | Democratic-Farmer-Labor | 83 | A |
| Petri, Tom | Wisconsin | 6th | 1979 | Republican | 44 | C |
| Pingree, Chellie | Maine | 1st | 2009 | Democratic | 100 | A+ |
| Pitts, Joe | Pennsylvania | 16th | 1997 | Republican | 18 | F |
| Platts, Todd | Pennsylvania | 19th | 2001 | Republican | 56 | C |
| Poe, Ted | Texas | 2nd | 2005 | Republican | 0 | F- |
| Polis, Jared | Colorado | 2nd | 1997 | Democratic | 100 | A+ |
| Pomeroy, Earl | North Dakota | 1993 | Democratic | 94 | A | |
| Posey, Bill | Florida | 15th | 2009 | Republican | 28 | D |
| Price, Tom | Georgia | 6th | 2005 | Republican | 6 | F |
| Price, David | North Carolina | 4th | 1997 | Democratic | 100 | A+ |
| Pryor, Mark | Arkansas | 2003 | Democratic | 86 | A | |
| Putnam, Adam | Florida | 12th | 2001 | Republican | 28 | D |
| Q— | State | District | Since | Party | % | Grade |
| Quigley, Mike | Illinois | 5th | 1993 | Democratic | 100 | A+ |
| R— | State | District | Since | Party | % | Grade |
| Radanovich, George | California | 19th | 1995 | Republican | 12 | F |
| Rahall, Nick | West Virginia | 3rd | 1977 | Democratic | 94 | A |
| Rangel, Charles | New York | 15th | 1971 | Democratic | 100 | A+ |
| Reed, Jack | Rhode Island | 1997 | Democratic | 100 | A+ | |
| Rehberg, Denny | Montana | 2001 | Republican | 33 | D | |
| Reichert, Dave | Washington | 8th | 2005 | Republican | 67 | B |
| Reid, Harry | Nevada | 1987 | Democratic | 100 | A+ | |
| Reyes, Silvestre | Texas | 16th | 1997 | Democratic | 100 | A+ |
| Richardson, Laura | California | 37th | 2007 | Democratic | 100 | A+ |
| Risch, James | Idaho | 2009 | Republican | 14 | F | |
| Roberts, Pat | Kansas | 1997 | Republican | 21 | F | |
| Rockefeller, Jay | West Virginia | 1985 | Democratic | 80 | B | |
| Rodgers, Cathy McMorris | Washington | 5th | 2005 | Republican | 22 | F |
| Rodriguez, Ciro | Texas | 23rd | 1993 | Democratic | 94 | A |
| Roe, Phil | Tennessee | 1st | 2009 | Republican | 28 | D |
| Rogers, Mike | Michigan | 8th | 2001 | Republican | 35 | D |
| Rogers, Mike | Alabama | 3rd | 2003 | Republican | 44 | C |
| Rogers, Hal | Kentucky | 5th | 1981 | Republican | 28 | D |
| Rohrabacher, Dana | California | 46th | 1989 | Republican | 17 | F |
| Rooney, Thomas | Florida | 16th | 2009 | Republican | 33 | D |
| Ros-Lehtinen, Ileana | Florida | 18th | 1989 | Republican | 61 | B |
| Roskam, Peter | Illinois | 6th | 2007 | Republican | 17 | F |
| Ross, Mike | Arkansas | 4th | 2001 | Democratic | 88 | A |
| Rothman, Steve | New Jersey | 9th | 1997 | Democratic | 100 | A+ |
| Roybal-Allard, Lucille | California | 34th | 1993 | Democratic | 100 | A+ |
| Royce, Ed | California | 40th | 1993 | Republican | 0 | F- |
| Ruppersberger, Dutch | Maryland | 2nd | 2003 | Democratic | 100 | A+ |
| Rush, Bobby | Illinois | 1st | 1993 | Democratic | 100 | A+ |
| Ryan, Tim | Ohio | 17th | 2003 | Democratic | 100 | A+ |
| Ryan, Paul | Wisconsin | 1st | 1999 | Republican | 12 | F |
| S— | State | District | Since | Party | % | Grade |
| Salazar, John | Colorado | 3rd | 2005 | Democratic | 94 | A |
| Sanchez, Loretta | California | 47th | 1997 | Democratic | 100 | A+ |
| Sanchez, Linda | California | 39th | 2003 | Democratic | 100 | A+ |
| Sanders, Bernie | Vermont | 2007 | Democratic | 100 | A+ | |
| Sandlin, Stephanie Herseth | South Dakota | 2004 | Democratic | 76 | B | |
| Sarbanes, John | Maryland | 3rd | 2007 | Democratic | 100 | A+ |
| Scalise, Steve | Louisiana | 1st | 2008 | Republican | 13 | F |
| Schakowsky, Jan | Illinois | 9th | 1999 | Democratic | 100 | A+ |
| Schauer, Mark | Michigan | 7th | 2001 | Democratic | 100 | A+ |
| Schiff, Adam | California | 29th | 2001 | Democratic | 100 | A+ |
| Schmidt, Jean | Ohio | 2nd | 2005 | Republican | 22 | F |
| Schock, Aaron | Illinois | 18th | 1993 | Republican | 33 | D |
| Schrader, Kurt | Oregon | 5th | 1991 | Democratic | 89 | A |
| Schumer, Chuck | New York | 1999 | Democratic | 93 | A | |
| Schwartz, Allyson | Pennsylvania | 13th | 2005 | Democratic | 100 | A+ |
| Scott, Robert | Virginia | 3rd | 1993 | Democratic | 100 | A+ |
| Scott, David | Georgia | 13th | 2003 | Democratic | 100 | A+ |
| Sensenbrenner, Jim | Wisconsin | 5th | 1979 | Republican | 11 | F |
| Serrano, José | New York | 16th | 1990 | Democratic | 100 | A+ |
| Sessions, Jeff | Alabama | 1997 | Republican | 31 | D | |
| Sessions, Pete | Texas | 32nd | 1997 | Republican | 11 | F |
| Sestak, Joe | Pennsylvania | 7th | 2007 | Democratic | 100 | A+ |
| Shadegg, John | Arizona | 3rd | 1995 | Republican | 0 | F- |
| Shaheen, Jeanne | New Hampshire | 2009 | Democratic | 100 | A+ | |
| Shea-Porter, Carol | New Hampshire | 1st | 2007 | Democratic | 100 | A+ |
| Shelby, Richard | Alabama | 1987 | Republican | 21 | F | |
| Sherman, Brad | California | 27th | 1997 | Democratic | 100 | A+ |
| Shimkus, John | Illinois | 19th | 1997 | Republican | 33 | D |
| Shuler, Heath | North Carolina | 11th | 2007 | Democratic | 83 | A |
| Shuster, Bill | Pennsylvania | 9th | 2001 | Republican | 22 | F |
| Simpson, Mike | Idaho | 2nd | 1999 | Republican | 39 | D |
| Sires, Albio | New Jersey | 13th | 2006 | Democratic | 100 | A+ |
| Skelton, Ike | Missouri | 4th | 1977 | Democratic | 88 | A |
| Slaughter, Louise | New York | 28th | 1987 | Democratic | 100 | A+ |
| Smith, Lamar | Texas | 21st | 1987 | Republican | 28 | D |
| Smith, Adrian | Nebraska | 3rd | 2007 | Republican | 17 | F |
| Smith, Adam | Washington | 9th | 1997 | Democratic | 100 | A+ |
| Smith, Chris | New Jersey | 4th | 1980 | Republican | 72 | B |
| Snowe, Olympia | Maine | 1995 | Republican | 64 | B | |
| Snyder, Vic | Arkansas | 2nd | 1997 | Democratic | 100 | A+ |
| Souder, Mark | Indiana | 3rd | 1995 | Republican | 33 | D |
| Space, Zack | Ohio | 18th | 2007 | Democratic | 100 | A+ |
| Specter, Arlen | Pennsylvania | 1981 | Democratic | 86 | A | |
| Speier, Jackie | California | 12th | 2008 | Democratic | 100 | A+ |
| Spratt, John | South Carolina | 5th | 1983 | Democratic | 100 | A+ |
| Stabenow, Debbie | Michigan | 2001 | Democratic | 100 | A+ | |
| Stark, Pete | California | 13th | 1973 | Democratic | 92 | A |
| Stearns, Cliff | Florida | 6th | 1989 | Republican | 22 | F |
| Stupak, Bart | Michigan | 1st | 1993 | Democratic | 83 | A |
| Sullivan, John | Oklahoma | 1st | 2003 | Republican | 20 | F |
| Sutton, Betty | Ohio | 13th | 2007 | Democratic | 100 | A+ |
| T— | State | District | Since | Party | % | Grade |
| Tanner, John | Tennessee | 8th | 1989 | Democratic | 81 | A |
| Taylor, Gene | Mississippi | 4th | 1989 | Democratic | 61 | B |
| Teague, Harry | New Mexico | 2nd | 2003 | Democratic | 94 | A |
| Terry, Lee | Nebraska | 2nd | 1999 | Republican | 33 | D |
| Tester, Jon | Montana | 2007 | Democratic | 79 | B | |
| Thompson, Mike | California | 1st | 1999 | Democratic | 100 | A+ |
| Thompson, Glenn | Pennsylvania | 5th | 2001 | Republican | 28 | D |
| Thompson, Bennie | Mississippi | 2nd | 1993 | Democratic | 100 | A+ |
| Thornberry, Mac | Texas | 13th | 1995 | Republican | 6 | F |
| Thune, John | South Dakota | 2005 | Republican | 14 | F | |
| Tiahrt, Todd | Kansas | 4th | 1995 | Republican | 13 | F |
| Tiberi, Pat | Ohio | 12th | 2001 | Republican | 47 | C |
| Tierney, John | Massachusetts | 6th | 1997 | Democratic | 100 | A+ |
| Titus, Dina | Nevada | 3rd | 2003 | Democratic | 100 | A+ |
| Tonko, Paul | New York | 21st | 2003 | Democratic | 100 | A+ |
| Towns, Ed | New York | 10th | 1983 | Democratic | 100 | A+ |
| Tsongas, Niki | Massachusetts | 5th | 2007 | Democratic | 100 | A+ |
| Turner, Mike | Ohio | 3rd | 2003 | Republican | 56 | C |
| U— | State | District | Since | Party | % | Grade |
| Udall, Tom | New Mexico | 1999 | Democratic | 93 | A | |
| Udall, Mark | Colorado | 1999 | Democratic | 93 | A | |
| Upton, Fred | Michigan | 6th | 1987 | Republican | 44 | C |
| V— | State | District | Since | Party | % | Grade |
| Van Hollen, Chris | Maryland | 8th | 2003 | Democratic | 100 | A+ |
| Velázquez, Nydia | New York | 12th | 1993 | Democratic | 100 | A+ |
| Visclosky, Pete | Indiana | 1st | 1985 | Democratic | 94 | A |
| Vitter, David | Louisiana | 2005 | Republican | 14 | F | |
| Voinovich, George | Ohio | 1999 | Republican | 38 | D | |
| W— | State | District | Since | Party | % | Grade |
| Walden, Greg | Oregon | 2nd | 1999 | Republican | 33 | D |
| Walz, Tim | Minnesota | 1st | 2007 | Democratic-Farmer-Labor | 100 | A+ |
| Wamp, Zach | Tennessee | 3rd | 1995 | Republican | 25 | F |
| Warner, Mark | Virginia | 2009 | Democratic | 93 | A | |
| Wasserman Schultz, Debbie | Florida | 20th | 2005 | Democratic | 100 | A+ |
| Waters, Maxine | California | 35th | 1991 | Democratic | 100 | A+ |
| Watson, Diane | California | 33rd | 2001 | Democratic | 100 | A+ |
| Watt, Mel | North Carolina | 12th | 1993 | Democratic | 100 | A+ |
| Waxman, Henry | California | 30th | 1975 | Democratic | 100 | A+ |
| Webb, Jim | Virginia | 2007 | Democratic | 93 | A | |
| Weiner, Anthony | New York | 9th | 1999 | Democratic | 100 | A+ |
| Welch, Peter | Vermont | 2007 | Democratic | 100 | A+ | |
| Westmoreland, Lynn | Georgia | 3rd | 2003 | Republican | 0 | F- |
| Wexler, Robert | Florida | 19th | 1997 | Democratic | 100 | A+ |
| Whitehouse, Sheldon | Rhode Island | 2007 | Democratic | 100 | A+ | |
| Whitfield, Ed | Kentucky | 1st | 1995 | Republican | 22 | F |
| Wicker, Roger | Mississippi | 2007 | Republican | 29 | D | |
| Wilson, Charlie | Ohio | 6th | 2007 | Democratic | 94 | A |
| Wilson, Joe | South Carolina | 2nd | 2001 | Republican | 17 | F |
| Wittman, Rob | Virginia | 1st | 2007 | Republican | 39 | D |
| Wolf, Frank | Virginia | 10th | 1981 | Republican | 44 | C |
| Woolsey, Lynn | California | 6th | 1993 | Democratic | 100 | A+ |
| Wu, David | Oregon | 1st | 1999 | Democratic | 100 | A+ |
| Wyden, Ron | Oregon | 1997 | Democratic | 93 | A | |
| Y— | State | District | Since | Party | % | Grade |
| Yarmuth, John | Kentucky | 3rd | 2007 | Democratic | 100 | A+ |
| Young, Bill | Florida | 10th | 1971 | Republican | 41 | C |
| Young, Don | Alaska | 1973 | Republican | 41 | C | |