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Comedian Rich Little, known for his impersonations, including this one of former President Richard Nixon, goes through his routine as he receives the 1,765th star on the Hollywood Walk of Fame in this July 27, 1983 file photo. Twenty-three years ago, Little stepped to the podium at the White House Correspondents' Association dinner after President Reagan told him: 'Now Rich, if you do well, we'll have you back.' It took more than two decades, but Little has finally returned. (AP Photo/Lennox McLendon, File)