MSNBC's Republican presidential debate with candidates: Senator Sam Brownback (R-Kansas);the former Virginia governor James Gilmore (R-Virginia); the former New York City mayor Rudolph Giuliani; the former Arkansas governor Mike Huckabee; Rep. Duncan Hunter (R-California); Senator John McCain (R-Arizona); Rep. Ron Paul (R-Texas); the former Massachusetts governor Mitt Romney; Rep. Tom Tancredo (R-Colorado); and the former Wisconsin governor Tommy Thompson. Moderated by Chris Matthews with questions by John Harris, editor in chief of politico.com and Jim Vandehei, executive editor of politico.com. At the Ronald Reagan Library in Simi Valley, California Transcribed by the Federal News Service, a private transcription agency.