Newt Gingrich slammed CNN's John King for opening Thursday's debate with a question about the former speaker's ex-wife's claim that he wanted an "open marriage." "I think the destructive, vicious, negative nature of much of the news media makes it harder to govern this country, harder to attract decent people to run for public office, and I am a

Newt Gingrich's ex-wife, Marianne, claims that the former speaker requested an "open marriage." "I said to him, 'Newt, we've been married a long time.' And he said, 'Yes, but you want me all to yourself. Callista doesn't care what I do,'" Marianne Gingrich told ABC News.

"Mr. Speaker, you talk about all the things you did with Ronald Reagan and the Reagan Revolution and the jobs created during the Reagan years and so forth. I mean, I looked at the Reagan diary. You were mentioned once in Ronald Reagan's diary. And in the diary he says you had an idea in a meeting of young congressman, and it wasn't a very good idea

Rick Santorum and Mitt Romney debate the health care plan Romney signed into law when he was governor of Massachusetts. "The system in my state is not a government-run system," Romney said. "92 percent of the people had their own insurance before the system was put in place, and nothing changed for them. They still have the same private insuranc

"Why is President Obama for young people being allowed to stay on their parents' insurance until 26? Because he can't get any jobs for them to go out and buy their own insurance. I have an offer to the parents of America: elect us, and your kids will be able to move out because they'll have work." (h/t

"I think that Gov. Perry actually endorsing me today was very helpful and I think will make a very big difference both around the country and an enormous difference in Texas," Gingrich said in an interview with PBS' Gwen Ifill. He goes on to say that he is the "only candidate who could potentially stop Mitt Romney, and so voters who don't want a

"I've always believed the mission is greater than the man," Perry said at a press conference in Charleston, S.C., on Thursday. "As I've contemplated the future of this campaign, I've come to the conclusion that there is no viable path forward for me in this 2012 campaign. Therefore, today I am suspending my campaign and endorsing Newt Gingrich for

Lawrence O'Donnell, John Heilemann and Michael Scherer discuss Wednesday's events on the campaign trail.

Newt Gingrich Web ad transcript: Narrator: Why is Mitt Romney attacking Newt Gingrich? Ask John McCain. McCain clip: "The best indicator that I am doing very well is when you're attacked by Mitt Romney." Narrator: Mitt Romney has a history of false attacks and negative campaigning. Ask Mike Huckabee. Huckabee clip: "Mitt Romney is runni

The "Special Report" panel discusses Mitt Romney's tax returns.

Rachel Maddow and Chris Hayes discuss the SOPA and PIPA legislation that is before Congress.

Bill O'Reilly discusses the issue of Mitt Romney's personal wealth and how it will play out in the campaign.

"President Obama wants to fundamentally transform America," Mitt Romney says in this TV ad airing in South Carolina. "I stand ready to lead us down a different path. This president has enacted job-killing regulations. I'll eliminate them. He lost our AAA credit rating. I'll restore it. He passed ObamaCare. I'll repeal it. I will cut, cap and balanc