Bush Sets Fast Pace at Fitness Race Sat Jun 22,12:42 PM ETBy LAWRENCE L. KNUTSON, Associated Press Writer WASHINGTON (AP) - He didn't finish first, second or even in the top 20, but President Bush ( news - web sites) tried to lead by example Saturday in a three-mile run with hundreds of White House workers. Photos AP Photo Slideshows Audio/Video (AP) His goal was to convince Americans to take to heart his message that regular exercise is essential to the good health of both the person and the nation. Bush came in near the top of the 400-runner field,...