04/20/2010 05:12 am ET Updated May 25, 2011

Letterman Takes On Evan Bayh's Vacated Senate Seat (VIDEO)

As an Indiana native, David Letterman is invested in what becomes Evan Bayh's seat in the Senate. With Bayh's decision to not run for re-election, a new contender must emerge, and Letterman couldn't help but compare it to the Scott Brown victory in Massachusetts. Judging by the commercial he showed, the only guaranteed winner will be male nudity.