Republican presidential candidate US Senator John McCain (R-AZ) receives the endorsement of former primary rival Mitt Romney, right, at Romney's campaign headquarters in Boston, Massachusetts, February 14, 2008. Romney asked his 200-plus delegates to vote for McCain at the Republican convention this summer.
Republican presidential candidate US Senator John McCain (R-AZ) tries to quieten down reporters asking "Is this the ticket?" after receiving the endorsement of former primary rival Mitt Romney, right, at Romney's campaign headquarters in Boston, Massachusetts, February 14, 2008. Romney asked his 200-plus delegates to vote for McCain at the Republican convention this summer.
Republican presidential candidate US Senator John McCain (R-AZ) speaks after receiving the endorsement of former primary rival Mitt Romney, right, at Romney's campaign headquarters in Boston, Massachusetts February 14, 2008. Romney asked his 200-plus delegates to vote for McCain at the Republican convention this summer.
Republican presidential candidate US Senator John McCain (R-AZ) speaks after receiving the endorsement of former primary rival Mitt Romney, right, at Romney's campaign headquarters in Boston, Massachusetts, February 14, 2008. Romeny asked his 200-plus delegates to vote for McCain at the Republican convention this summer.
WASHINGTON - FEBRUARY 07: U.S. Republican presidential candidate and former Massachusetts Governor Mitt Romney (R) walks off stage with his wife Ann after he announced the suspension of his campaign at a Conservative Political Action Committee convention, February 7, 2008, in Washington. Romney announced he suspended his campaign for the republican nomination for U.S. president leaving front runner U.S. Sen. John McCain (R-AZ) and former Arkansas Gov. Mike Huckabee in the race.
WASHINGTON - FEBRUARY 07: U.S. Republican presidential candidate and former Massachusetts Governor Mitt Romney (R) walks off stage with his wife Ann after he announced the suspension of his campaign at a Conservative Political Action Committee convention, February 7, 2008, in Washington. Romney announced he suspended his campaign for the republican nomination for U.S. president leaving front runner U.S. Sen. John McCain (R-AZ) and former Arkansas Gov. Mike Huckabee in the race.
WASHINGTON - FEBRUARY 07: U.S. Republican presidential candidate and former Massachusetts Governor Mitt Romney (R) waves goodbye with his wife Ann wave after he announced the suspension of his campaign at a Conservative Political Action Committee convention, February 7, 2008, in Washington. Romney announced he suspended his campaign for the republican nomination for U.S. president leaving front runner U.S. Sen. John McCain (R-AZ) and former Arkansas Gov. Mike Huckabee in the race.
WASHINGTON - FEBRUARY 07: U.S. Republican presidential candidate and former Massachusetts Governor Mitt Romney (R) stands with his wife Ann after he announced the suspension of his campaign at a Conservative Political Action Committee convention, February 7, 2008, in Washington. Romney announced he suspended his campaign for the republican nomination for U.S. president leaving front runner U.S. Sen. John McCain (R-AZ) and former Arkansas Gov. Mike Huckabee in the race.
Republican presidential hopeful former Massachusetts Gov. Mitt Romney arrives in the parking lot of his campaign headquarters in Boston, Mass., Wednesday, Feb. 6, 2008. The day after his Super Tuesday wins in the West, Romney enjoyed his first night at home in a month and went to his office for a strategy session with aides. "Got some good sleep," said Romney, who vowed to stay in the race.
Republican presidential hopeful former Massachusetts Gov. Mitt Romney arrives in the parking lot of his campaign headquarters in Boston, Mass., Wednesday, Feb. 6, 2008. The day after his Super Tuesday wins in the West, Romney enjoyed his first night at home in a month and went to his office for a strategy session with aides. "Got some good sleep," said Romney, who vowed to stay in the race.
Republican presidential candidate and former Massachusetts Governor Mitt Romney (C) stands backstage after his "Super Tuesday" primary election night rally in Boston, February 5, 2008. Twenty-four of the 50 states are holding nominating contests for one or both parties on "Super Tuesday" for a huge haul of delegates to this summer's conventions that will choose the candidates for the November presidential election.
Republican presidential candidate and former Massachusetts Gov. Mitt Romney (L), his sons Ben (C) and Tagg (R) stand backstage and watch Republican opponent and former Arkanas Gov. Mike Huckabee speak on a television, prior to his own "Super Tuesday" primary election night rally in Boston, February 5, 2008.
US Republican presidential candidate and former Massachusetts Governor Mitt Romney (C) and his wife Ann appear at his "Super Tuesday" primary election night rally in Boston, February 5, 2008. Twenty-four of the 50 states are holding nominating contests for one or both parties on "Super Tuesday" for a huge haul of delegates to this summer's conventions that will choose the candidates for the November presidential election.