ST. PETERSBURG, FL - NOVEMBER 28:  The Republican presidential candidates, (L-R) U.S. Rep. Tom Tancredo (R-CO), former Arkansas governor Mike Huckabee, former Massachusetts governor Mitt Romney, and former New York City Mayor Rudy Giuliani, listen to a question from a YouTube questioner as they stand on stage during the CNN-YouTube Presidential Debate at the Mahaffey Theater at the Progress Energy Center for the Arts November 28, 2007 in St. Petersburg, Florida. The two-hour broadcast, featuring all eight declared Republican candidates and moderated by Anderson Cooper, consisted of video questions submitted on YouTube by citizens across the country. Getty Images logo Getty Images 24 months ago

ST. PETERSBURG, FL - NOVEMBER 28: The Republican presidential candidates, (L-R) U.S. Rep. Tom Tancredo (R-CO), former Arkansas governor Mike Huckabee, former Massachusetts governor Mitt Romney, and former New York City Mayor Rudy Giuliani, listen to a question from a YouTube questioner as they stand on stage during the CNN-YouTube Presidential Debate at the Mahaffey Theater at the Progress Energy Center for the Arts November 28, 2007 in St. Petersburg, Florida. The two-hour broadcast, featuring all eight declared Republican candidates and moderated by Anderson Cooper, consisted of video questions submitted on YouTube by citizens across the country.