President Obama emptied his bag of tricks on his final day of campaigning ever, bringing out Jay-Z for a set before a campaign rally in Ohio. Jay did his thing, even remixing the chorus, "I got 99 Problems but Mitt ain't one." Well, I guess we'll see about that today. 

P.S. That's not the only Jay-Z influence has in politics. Check out New Jersey Mayor Cory Booker's Twitter feed.