Former Sen. Mark Warner (R-Va.), left, and former Sen. Sam Nunn (D-Ga.), right, arrive with former Sen. Chuck Hagel, second from right, to testify at Hagel's confirmation hearing to be the next Secretary of Defense at the Senate Armed Services Committee on Capitol Hill, Washington, D.C., Thursday, Jan. 31, 2013. (Andrew Harnik/The Washington Times)
Former Sen. Mark Warner (R-Va.), left, and former Sen. Sam Nunn (D-Ga.), right, arrive with former Sen. Chuck Hagel, second from right, to testify at Hagel's confirmation hearing to be the next Secretary of Defense at the Senate Armed Services Committee on Capitol Hill, Washington, D.C., Thursday, Jan. 31, 2013. (Andrew Harnik/The Washington Times)
**FILE** Sen. Mark Warner, Virginia Democrat, speaks on CBS' "Face the Nation" in Washington on April 17, 2011. (Associated Press/CBS News)
**FILE** Sen. Mark Warner, Virginia Democrat, speaks on CBS' "Face the Nation" in Washington on April 17, 2011. (Associated Press/CBS News)
Sen. Mark Warner (D-Va.), left, cheers on Tim Kaine (D), right, as he delivers his victory speech after winning the Virginia election for U.S. Senate at his election night party at the Richmond Marriott, Richmond, Va., Tuesday, November 6, 2012. (Andrew Harnik/The Washington Times)
Sen. Mark Warner (D-Va.), left, Tim Kaine (D), right, and his wife Anne Holton, center, as they get word that President Barack Obama wins reelection during Kaine's victory speech after winning the Virginia election for U.S. Senate at his election night party at the Richmond Marriott, Richmond, Va., Tuesday, November 6, 2012. (Andrew Harnik/The Washington Times)
Sen. Mark Warner (D-Va.), second from left, cheers on Tim Kaine (D) as he delivers his victory speech after winning the Virginia election for U.S. Senate at his election night party at the Richmond Marriott, Richmond, Va., Tuesday, November 6, 2012. (Andrew Harnik/The Washington Times)
Sen. Mark Warner (D-Va.), left, cheers on Tim Kaine (D), right, as he delivers his victory speech after winning the Virginia election for U.S. Senate at his election night party at the Richmond Marriott, Richmond, Va., Tuesday, November 6, 2012. (Andrew Harnik/The Washington Times)
Sen. Mark Warner (D-Va.), left, Tim Kaine (D), right, and his wife Anne Holton, center, as they get word that President Barack Obama wins reelection during Kaine's victory speech after winning the Virginia election for U.S. Senate at his election night party at the Richmond Marriott, Richmond, Va., Tuesday, November 6, 2012. (Andrew Harnik/The Washington Times)
