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.