PRESIDENTIAL NEWS OF THE DAY: President and Mrs. Bush spent the weekend in Washington where they attended the annual White House Correspondents' Association dinner last night. The Washington Post described the President's appearance this way: The evening took a turn toward the somber when the President took the stage. After a videotaped message from David Letterman ("Top 10 George W. Bush Moments"), he said, "In light of this week's tragedy at Virginia Tech I've decided not to be funny." And with that he handed the lectern over to Rich Little. "I'm not here to make any political points," the veteran...