The August 5 Republican Debate

It was Mitt Romney and Rudy Giuliani's big day at the special Sunday morning Republican debate

The Republican Candidates

Tom Tancredo

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Charlie_Neibergall / AP

Petulant on Iraq, libertarian on government's role in health care, and unhinged (or zealous, depending on your perspective) on everything else. Still more often than not appears extreme and rather unpresidential.

— Mark Halperin