LAS VEGAS, NV - JANUARY 31: Republican presidential candidate and former U.S. Sen. Rick Santorum greets people as he leaves an election results party for the Florida primary at his Nevada campaign ... more 
LAS VEGAS, NV - JANUARY 31: Republican presidential candidate and former U.S. Sen. Rick Santorum greets people as he leaves an election results party for the Florida primary at his Nevada campaign headquarters January 31, 2012 in Las Vegas, Nevada. The Nevada GOP caucus will be held on February 4. According to early results former Massachusetts Gov. Mitt Romney defeated Santorum, former Speaker of the House Newt Gingrich and U.S. Rep. Ron Paul (R-TX) to win today's Florida primary. (Photo by Ethan Miller/Getty Images) less 
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Getty Images | Photo By Ethan Miller / Getty Images
Tue, Jan 31, 2012 10:46 PM EST