Probably because you’re so dumb even Obama comes across as semi-intelligent in your presence.
Via Weekly Standard:
At an apparently unscheduled stop at a Boys and Girls Club in Sioux City, Iowa, Vice President told a group of about 75 boys about the 2008 election. “I never intended to get involved in politics and become vice president,” Biden reportedly said, according to the pool report. The pool reporter then writes, “[Biden] said his 2008 run for the presidency ended badly.”
How badly? “I got beat like a drum by Barack Obama,” Biden admitted to the group of boys.
The pool reporter then paraphrases: “After turning down Obama once, he related finally agreeing to be his running mate.