HEMPSTEAD, N.Y. - Former president Bill Clinton called Congress' impeachment of him an "egregious" abuse of the Constitution and challenged those who say history will judge him poorly because of his White House tryst with Monica Lewinsky. Speaking at an academic conference examining his presidency here Thursday, Clinton challenged historian Douglas Brinkley's comments in a newspaper interview that Clinton would be deemed a great president were it not for his impeachment. "I completely disagree with that," Clinton said in his speech at Hofstra University. "You can agree with that statement, but only if you think impeachment was justified. Otherwise, it...