Here's a quick rundown of what's shaking in the campaign world this afternoon:
Fred Thompson gets in on the endorsement game, nabbing the backing of Iowa Rep. Steve King (R), according to CBS News Chief Political Consultant Marc Ambinder, who notes that the decision was a surprise to Mitt Romney's campaign which had figured to get King's endorsement. Also, Iowa Rep. Dave Loebsack (D) has endorsed Barack Obama. John McCain has launched his first radio ads in South Carolina, featuring Senator Lindsay Graham, whose message to GOP primary voters is: "John McCain is the only candidate for president prepared to be Commander-in-Chief on day one. No candidate can match his record of service. And as all the polls indicate, he's the only Republican who can beat Hillary Clinton in the general election. So our party and our nation need John McCain."The scrutiny of Mike Huckabee continues with Newsweek reporting on allegations that the former governor's so, David Huckabee, was implicated in the hanging of a dog at a Boy Scout camp in 1998. No charges were filed but a former director of the Arkansas state police tells the magazine that Huckabee and others pressured him not to investigate complaints from animal rights activists. Huckabee denies doing so and the campaign said David Huckabee regrets the incident.