Rep. Tom Tancredo, R-Colo. WASHINGTON – Two years ago, he was as lonely as the Maytag repairman – an obscure congressman trying desperately to raise the visibility of an issue he believed threatened the very security of the U.S. More recently, he has become a force to be reckoned with, the leader of a powerful House caucus, a Republican who has taken on the president, a man respected for outspoken positions and the political force behind what has become the hottest issue in the nation. Rep. Tom Tancredo, R-Colo., chairman of the House Immigration Reform Caucus and the undisputed...