| 2017 Sen. Cory Gardner (CO) and Sen. Gary Peters (MI) |
| 2016 Sen. John Thune (SD), Sen. Chris Coons (DE), Rep. G. K. Butterfield (NC) and Rep. David McKinley (WV) |
| 2015 Sen. Sen. Richard Shelby (AL) and Rep. Donna Edwards (MD-4) |
| 2014 Rep. Eddie Bernice Johnson (D-TX) |
| 2013 Rep. Richard L. Hannah (R-NY) and Rep. Michael “Mike” Honda (D-CA) |
| 2012 Rep. Randy Hultgren (R-IL) and Sen. Mark Udall (D-CO) |
| 2011 Senator Kay Bailey Hutchison (R-TX) and Representative Martin Lipinski (D-IL) |
| 2010 Congressman Ralph Hall (R-TX) and Congressman David Wu (D-OR) |
| 2009 Congressman David Obey (D-WI) |
| 2008 Congressman Bart Gordon (D-TN) |
| 2007 Speaker of the House Nancy Pelosi (D-CA) and Senator Lamar Alexander (R-TN) |
| 2006 Congressman Frank Wolf (R-VA) |
| 2005 Congressman Vernon Ehlers (R-MI) and Senator Jeff Bingaman (D-NM) |
| 2004 Representative Rush Holt (D-NJ) and Representative Judy Biggert (R-IL) |
| 2003 Representative Jim Walsh (R-NY) and Representative Alan Mollohan (D-WV) |
| 2002 Representative Sherwood Boehlert (R-NY) |
| 2001 Senator Christopher Bond (R-MO) and Senator Barbara Mikulski (D-MD) |
| 2000 Senator Bill Frist (R-TN) and Senator John D. Rockefeller (D-WV) |
| 1999 Representative George E. Brown, Jr. (D-CA), Senator Pete Domenici (R-NM) and Senator Joseph I. Lieberman (D-CT) |
