Plouffe speaks at fund-raiser in Chicago

White House senior advisor David Plouffe walks onto the stage at a 2012 campaign event at Navy Pier in Chicago on April 14, 2011. U.S. President Barack Obama kicked off the fund-raising effort of his 2012 re-election campaign hoping to raise $2 million for the Democratic National Committee with two events at Chicago's high-end N9NE and MK restaurants along with a larger event at Navy Pier. UPI/Brian Kersey