Play of the Day -- Mitt Romney's flip-flop finder

Jon Stewart uses a button to find a Romney inconsistency.

Mitt Romney won the Michigan Republican primary, despite the fact that "Romney kept putting his foot in the mouth he hired so his own mouth doesn't get feet in it," Jon Stewart joked on Tuesday.

And don't miss today's Must See Moment at 1:36 when David Letterman presents the new star of the upcoming Dr. Seuss movie, The Lorax: