Video round-up

Check out this hilarious Wanda Sykes comedy routine on "same sex marriage." (NSFW)

Obama channels Rick Astley:

Democrats respond with their own ad after McCain released an ad with praise from Democrats (McCain's ad, of course, used clips that were years old).

A look at McCain's transition from a "respectful" campaign to the low road:

Obama gracefully handles a heckler who insists on the Pledge of Allegiance at a townhall meeting.

And he talks about energy efficiency and pokes fun at McCain's focus on tire guages and Britney Spears:

The Onion reports on Bush's tour of "the destruction caused by his presidency." :-)

And finally, Obama's positive message... the ad he's running during the Olympics: