David Letterman: Top Ten Signs Barack Obama Is Overconfident.

"10. Proposed bill to change Oklahoma to 'Oklabama.'

9. Offered Bush 20 bucks for the 'Mission Accomplished' banner.

8. Asked guy at Staples, 'Which chair will work best in an oval-shaped office?'

7. The affair with Barbara Walters.

6. Having head measured for Mount Rushmore.

5. Guy sits around eating soup all day.

4. He's voting for Nader.

3. Offered McCain a job in gift shop at Obama Presidential Library.

2. Announced his running mate will be Andy Dick.

1. Been cruising for chicks with John Edwards."