Last night President Obama was in town for two fundraisers, but he also stopped by the Late Show to discuss the surreptitiously-filmed video of Romney writing off half the country as shiftless moochers who are a lost cause for his campaign. "I don't know what he was referring to," the president told David Letterman, presumably while he experienced a brief campaign-acid-flashback. "My expectation is that if you want to be president, you have to work for everyone, not just for some…“There are not a lot of people out there who think they are victims."

The president also discussed the recent attack in Libya that killed Ambassador Chris Stevens and three other Americans. After saying he was committed to bringing those who committed it to justice as well as promoting democracy in the Middle East, he added:

The message we have to send, I think, to the Muslim world is, we expect you to work with us to keep our people safe. And as offensive as this video was, and obviously, we denounced it, and the United States government had nothing to do with it, that’s never an excuse for violence.

Letterman also expressed a desire to want to blame someone for the economy, which Obama said he blamed everyone, describing how the country has had economic issues for at least ten years. "Can I blame Biden?" Letterman asked. "I love Joe," the president replied. And (probably) so does she.

Here's a link to the full segment