Republican presidential candidate Mitt Romney on Tuesday in Las Vegas.
Justin Sullivan/Getty Images
May 30, 2012 With his win Tuesday in the Texas primary Mitt Romney has "clinched the Republican presidential nomination," according to The Associated Press.
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May 23, 2012 Insurgent candidates won contested congressional GOP primaries in two states Tuesday. In a Kentucky district, the favorite for the fall prevailed thanks to some assistance from a wealthy 21-year-old benefactor.
Back in 2006: Then-President George W. Bush and then-Gov. Mitt Romney
Brendan Smialowski /AFP/Getty Images
May 16, 2012 As an elevator's doors closed, former President George W. Bush confirmed the obvious. But Romney's campaign doesn't see Bush playing an important role in the 2012 campaign.
President Obama meets with actor George Clooney, U.S. Special Envoy for Sudan Princeton N. Lyman, and human rights activist John Prendergast (far left) at the White House on March 15.
Pete Souza/White House
May 10, 2012 On Thursday, some of Hollywood's top stars and deepest pockets will congregate at the Studio City, Calif., home of actor George Clooney to mingle with President Obama and raise money for his re-election campaign. At least one conservative group is deriding Obama as a "celebrity president."
Back in their sparring days: Rick Santorum (left) and Mitt Romney during a Feb. 22, 2012, Republican presidential debate in Arizona.
Don Emmert/AFP/Getty Images
May 8, 2012 They don't agree on everything, but they do agree that they want to defeat President Obama, Santorum says of his former rival for the Republican presidential nomination.
An image from the Republican National Committee's Facebook page advertises its new "Social Victory Center" app.
RNC via Facebook.com
May 3, 2012 So far this campaign, President Obama has spent six times as much on online ads as on TV. Republicans, meanwhile, have unveiled a key to their online strategy: a new Facebook app.
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May 2, 2012 The former House speaker exits the race for the 2012 Republican presidential nomination.
Ann and Mitt Romney, on March 20, celebrating his win in the Illinois primary.
Chip Somodevilla/Getty Images
May 1, 2012 "I still look at him as the boy that I met in high school when he was playing all the jokes and really just being crazy, pretty crazy," Ann Romney said today on CBS.
Marianne Todd/Getty Images
May 1, 2012 He's giving supporters "an insider advanced notice that on Wednesday I'll be officially suspending the campaign." And he's using the message to say, again, that reelecting President Obama "would be a genuine disaster."
Republican presidential candidate Newt Gingrich and his wife, Callista, Tuesday night in Concord, N.C.
John W. Adkisson/Getty Images
April 25, 2012 Sources are telling media outlets that the former House speaker will soon exit the campaign and that it's highly likely he will endorse Mitt Romney.
Republican presidential candidate Mitt Romney and his wife Ann celebrated Tuesday night in Manchester, N.H.
Chip Somodevilla/Getty Images
April 25, 2012 After winning all five primaries on Tuesday, the former Massachusetts governor all but wrapped up the race for the Republican presidential nomination. Now he's pledging to mount a campaign to show "we can do better."
Former Vice President and Lynne Cheney at home after his release from Inova Fairfax Hospital in Northern Virginia, where he received the heart transplant.
Courtesy of Dick Cheney
April 13, 2012 Just three weeks ago, the former vice president had a heart transplant. This would be his first public appearance since then.
Former Sen. Rick Santorum as he announced the end of his White House bid. His wife, Karen, is in the background.
Jeff Swensen/Getty Images
April 10, 2012 The former Pennsylvania senator, who has been Mitt Romney's main challenger in recent weeks for the 2012 Republican presidential nomination, pitched himself as the one true conservative in the race.
Rep. Paul Ryan, R-Wis., at NPR headquarters in May 2011.
March 30, 2012 One day after his fellow Republicans in the House passed his version of a 2013 federal budget, Wisconsin Rep. Paul Ryan throws his support behind Mitt Romney's bid for the GOP presidential nomination.
Republican presidential contender Rick Santorum during a campaign event Sunday in Fond du Lac, Wis.
Mark Hirsch/Getty Images
March 26, 2012 Though Rick Santorum won in Louisiana and shows no sign of giving up his battle with front runner Mitt Romney, there's a case to be made that Republican Party leaders want the nomination battle to be over sooner rather than later.
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