| State | Office | District | Name | Party | Rating |
|---|---|---|---|---|---|
| Daniel Akaka, Sr. | 100% | ||||
| TN | U.S. Senate | Sr | Lamar Alexander | Republican | 0% |
| WY | U.S. Senate | Jr | John Barrasso | Republican | 0% |
| MT | U.S. Senate | Sr | Max Baucus | Democratic | 100% |
| Evan Bayh | 100% | ||||
| AK | U.S. Senate | Jr | Mark Begich | Democratic | 100% |
| CO | U.S. Senate | Jr | Michael Bennet | Democratic | 100% |
| Bob Bennett | 0% | ||||
| Jeff Bingaman | 100% | ||||
| Kit Bond | 0% | ||||
| CA | U.S. Senate | Jr | Barbara Boxer | Democratic | 100% |
| Scott Brown | 0% | ||||
| OH | U.S. Senate | Sr | Sherrod Brown | Democratic | 100% |
| Jim Bunning | 0% | ||||
| NC | U.S. Senate | Sr | Richard Burr | Republican | 0% |
| WA | U.S. Senate | Jr | Maria Cantwell | Democratic | 100% |
| MD | U.S. Senate | Jr | Ben Cardin | Democratic | 100% |
| DE | U.S. Senate | Sr | Tom Carper | Democratic | 100% |
| PA | U.S. Senate | Sr | Bob Casey, Jr. | Democratic | 100% |
| GA | U.S. Senate | Sr | Saxby Chambliss | Republican | 0% |
| OK | U.S. Senate | Jr | Thomas Coburn | Republican | 0% |
| MS | U.S. Senate | Sr | Thad Cochran | Republican | 0% |
| ME | U.S. Senate | Sr | Susan Collins | Republican | 0% |
| Kent Conrad | 100% | ||||
| DE | U.S. Senate | Jr | Chris Coons | Democratic | 100% |
| TN | U.S. Senate | Jr | Robert Corker | Republican | 0% |
| TX | U.S. Senate | Sr | John Cornyn | Republican | 0% |
| ID | U.S. Senate | Sr | Mike Crapo | Republican | 0% |
| James DeMint | 0% | ||||
| Chris Dodd | 100% | ||||
| Byron Dorgan | 100% | ||||
| IL | U.S. Senate | Sr | Dick Durbin | Democratic | 100% |
| John Ensign | 0% | ||||
| WY | U.S. Senate | Sr | Mike Enzi | Republican | 0% |
| Russ Feingold | 0% | ||||
| CA | U.S. Senate | Sr | Dianne Feinstein | Democratic | 100% |
| MN | U.S. Senate | Jr | Al Franken | Democratic/Farmer/Labor | 100% |
| NY | U.S. Senate | Jr | Kirsten Gillibrand | Democratic | 100% |
| SC | U.S. Senate | Sr | Lindsey Graham | Republican | 0% |
| IA | U.S. Senate | Sr | Chuck Grassley | Republican | 0% |
| NC | U.S. Senate | Jr | Kay Hagan | Democratic | 0% |
| IA | U.S. Senate | Jr | Tom Harkin | Democratic | 100% |
| UT | U.S. Senate | Sr | Orrin Hatch | Republican | 0% |
| Kay Hutchison | 0% | ||||
| OK | U.S. Senate | Sr | Jim Inhofe | Republican | 0% |
| Daniel Inouye | 100% | ||||
| GA | U.S. Senate | Jr | Johnny Isakson | Republican | 0% |
| NE | U.S. Senate | Sr | Mike Johanns | Republican | 0% |
| SD | U.S. Senate | Sr | Timothy Johnson | Democratic | 100% |
| NA | U.S. Secretary of State | John Kerry | Democratic | 100% | |
| IL | U.S. Senate | Jr | Mark Kirk | Republican | 0% |
| MN | U.S. Senate | Sr | Amy Klobuchar | Democratic/Farmer/Labor | 100% |
| Herb Kohl | 100% | ||||
| Jon Kyl | 0% | ||||
| LA | U.S. Senate | Sr | Mary Landrieu | Democratic | 100% |
| Frank Lautenberg | 100% | ||||
| VT | U.S. Senate | Sr | Patrick Leahy | Democratic | 100% |
| George LeMieux | 0% | ||||
| MI | U.S. Senate | Sr | Carl Levin | Democratic | 100% |
| Joe Lieberman | 0% | ||||
| Blanche Lincoln | 100% | ||||
| Dick Lugar | 0% | ||||
| WV | U.S. Senate | Jr | Joe Manchin III | Democratic | 100% |
| AZ | U.S. Senate | Sr | John McCain III | Republican | 0% |
| MO | U.S. Senate | Sr | Claire McCaskill | Democratic | 100% |
| KY | U.S. Senate | Sr | Mitch McConnell | Republican | 0% |
| NJ | U.S. Senate | Sr | Bob Menendez | Democratic | 100% |
| OR | U.S. Senate | Jr | Jeff Merkley | Democratic | 100% |
| MD | U.S. Senate | Sr | Barbara Mikulski | Democratic | 100% |
| AK | U.S. Senate | Sr | Lisa Murkowski | Republican | 0% |
| WA | U.S. Senate | Sr | Patty Murray | Democratic | 100% |
| Ben Nelson | 100% | ||||
| FL | U.S. Senate | Sr | William Nelson, Sr. | Democratic | 100% |
| AR | U.S. Senate | Sr | Mark Pryor | Democratic | 100% |
| RI | U.S. Senate | Sr | Jack Reed | Democratic | 100% |
| NV | U.S. Senate | Sr | Harry Reid | Democratic | 100% |
| ID | U.S. Senate | Jr | James Risch | Republican | 0% |
| KS | U.S. Senate | Sr | Pat Roberts | Republican | 0% |
| WV | U.S. Senate | Sr | Jay Rockefeller IV | Democratic | 100% |
| VT | U.S. Senate | Jr | Bernie Sanders | Independent | 100% |
| NY | U.S. Senate | Sr | Chuck Schumer | Democratic | 100% |
| AL | U.S. Senate | Jr | Jeff Sessions III | Republican | 0% |
| NH | U.S. Senate | Sr | Jeanne Shaheen | Democratic | 100% |
| AL | U.S. Senate | Sr | Richard Shelby | Republican | 0% |
| Olympia Snowe | 0% | ||||
| Arlen Specter | 100% | ||||
| MI | U.S. Senate | Jr | Debbie Stabenow | Democratic | 100% |
| MT | U.S. Senate | Jr | Jon Tester | Democratic | 100% |
| SD | U.S. Senate | Jr | John Thune | Republican | 0% |
| CO | U.S. Senate | Sr | Mark Udall | Democratic | 0% |
| NM | U.S. Senate | Sr | Thomas Udall | Democratic | 100% |
| LA | U.S. Senate | Jr | David Vitter | Republican | 0% |
| George Voinovich | 0% | ||||
| VA | U.S. Senate | Sr | Mark Warner | Democratic | 0% |
| Jim Webb, Jr. | 100% | ||||
| RI | U.S. Senate | Jr | Sheldon Whitehouse | Democratic | 100% |
| MS | U.S. Senate | Jr | Roger Wicker | Republican | 0% |
| OR | U.S. Senate | Sr | Ron Wyden | Democratic | 100% |
How to Interpret these Evaluations
Keep in mind that ratings done by special interest groups often do not represent a non-partisan stance. In addition, some groups select votes that tend to favor members of one political party over another, rather than choosing votes based solely on issues concerns. Nevertheless, they can be invaluable in showing where an incumbent has stood on a series of votes in the past one or two years, especially when ratings by groups on all sides of an issue are compared. Website links, if available, and descriptions of the organizations offering performance evaluations are accessible by clicking on the name of the group.
Most performance evaluations are displayed in a percentage format. However, some organizations present their ratings in the form of a letter grade or endorsement based on voting records, interviews, survey results and/or sources of campaign funding. For consistency and ease in understanding, Project Vote Smart converts all scores into a percentage when possible. Please visit the group's website or call 1-888-VOTESMART for more specific information.