Rick Perry's drop out of the GOP presidential race, Mitt Romney's win in Iowa is called into question and an explosive interview with Newt Gingrich's ex-wife airs tonight. Molly Ball, political reporter with The Atlantic updates us on the Republican campaign. Plus KPCC blogger Leslie Berestein Rojas looks into Romney's Mexican roots. Marketplace tech reporter John Moe joins the show with details on Apple's new product that's aimed at helping students. Also, the dog walker who made the grim discovery of the severed head in the Hollywood Hills and the Sklar brothers who break down the latest sports news.