"Probably that I’m too reasonable and I should have responded to the negative ads sooner," Newt Gingrich said in Iowa today when he was asked what he thought was his greatest weakness.

Former Pennsylvania Sen. Rick Santorum says his campaign will be in "good shape" if he surpasses Rick Perry and Michele Bachmann in Tuesday's Iowa caucus.

Ron Paul discusses controversial newsletters that were published under his name in the 1980s and 1990s."I was not the editor. I was the publisher. And there were some very bad sentences put in," Paul said. "I did not write those. I did not review them. And that is an error on my part.""I don't think anybody in the world has been pe

In the latest poll from the Des Moines Register Mitt Romney, Ron Paul and Rick Santorum are leading the GOP pack. Senator Rand Paul (son of Ron Paul), former Congressman (and Gingrich supporter) J.C. Watts, and former Sen. Jim Talent (a Romney supporter) join Bob Schieffer to discuss where their candidates are standing.

GOP strategist Mike Murphy, New York Times columnist David Brooks, NBC's Andrea Mitchell, TIME magazine's Mark Halperin and the Des Moines Register's Kathie Obradovich discuss Tuesday's Iowa caucuses.

This isn't just about polling," Bachmann said on ABC's "This Week." "This is about what we're seeing in reality, and I think Tuesday night people are going to see a miracle."

Texas Gov. Rick Perry discusses his chances in Tuesday's Iowa caucuses, saying that "the momentum's headed in the right direction.""Nobody's got a better ground game," he said. "Nobody's got the ability to go past Iowa on into these other states with a fundraising, with a national fundraising ability, with the message that we have as an e