THE WASHINGTON TIMES Who knew? First lady Laura Bush took over the podium from her husband at Saturday night's annual White House Correspondents' Association dinner and knocked 'em dead, keeping Washington's most powerful politicos in stitches as she worked the ballroom like a seasoned stand-up comic. "George always says he's delighted to come to these press dinners. Baloney. He's usually in bed by now," Mrs. Bush said. "I'm not kidding. I said to him the other day, 'George, if you really want to end tyranny in the world, you're going to have to stay up later.' "