Gingrich supporter Fred Thompson sizes up presidential candidate's chances for success on Super Tuesday

TIME's Mark Halperin discusses the political news of the morning, including Fred Thompson's big day, where he accepts an important endorsement and gives a national security speech

With the Iowa Caucuses just six weeks away, campaign ads are flowing more freely. Slate's John Dickerson decodes a fresh batch of spots.

TIME's Mark Halperin discusses the political news of the morning, including Fred Thompson's big day, where he accepts an important endorsement and gives a national security speech

Former Sen. Fred Thompson (R-TN) weighs in on why Mitt Romney needs to work harder on attracting conservative votes.

Former Sen. Fred Thompson and Sen. John McCain debate the reason for new GOP criticism of Newt Gingrich.

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Clarence Darrow (Brian Dennehy) cross-examines William Jennings Bryan (Sen. Fred Thompson). At the Scopes Monkey Trial of 1925, this cross-examination made jurisprudential history.