A Cleric Assumes a Bully PulpitBy CHARLIE LeDUFF UT, Iraq, April 18 - Try as they might, the American military commanders here cannot outfox Sayed Abbas. Mr. Abbas, 52, was the first to arrive at city hall last week after Kut fell to the Americans. A Shiite Muslim preacher, he immediately declared himself the elected mayor of the city, though no election seems to have taken place. He has taken up residence amid the chandeliers, marble and mahogany of city hall and is surrounded by legions of zealous supporters, an exclusively male population that grows larger by the day. The...