"Live! From New York! It's (Surprise!) Obama On SNL" (with video)

Huffington Post, with video (05:17):

Live! From New York! It's Barack Obama making a surprise visit to open NBC's Saturday Night Live.

Democratic presidential hopeful Obama played himself in a sketch where he one-upped a cast member playing chief rival Hillary Rodham Clinton, working in a campaign theme along the way--that he has nothing to hide and the calculating Clinton does.