msnbc's Chris Matthews, host of "Hardball," went on The Tonight Show with Jay Leno for the 25th time last night.
He was a guest alongside actress/comedian Whitney Cummings, who jumped in the conversation on politics and possible vice-presidential candidates - 'I'm available,' she quipped.
Chris also discussed his new book 'Jack Kennedy: Elusive Hero,' which is currently number 3 on the New York Times best-sellers list!