Last night was the Obama Staff Ball in Washington. While the stars of the night were the president and vice president, the entertainment was top-notch, Jay-Z and Arcade Fire.
The ball was the final event in the weeklong celebration of the historic inauguration. It was a party for the thousands of staffers who helped Obama's campaign, most of them in their 20s.
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The line of the night, though, came from Jay-Z, who performed a new version of his classic: "99 Problems" (But a Bush Ain't One).