OMAHA, Neb. -- A Nebraska congressman said the president's visit to Omaha isn't meant to change his mind on immigration. The arrival of President George W. Bush in Omaha has been widely anticipated in metro-area political circles on both sides of the aisle. Republicans Rep. Lee Terry and Sen. Chuck Hagel said there's some subtext to Bush's trip. "When he gets onto an issue, he likes taking it to the people and building up that grassroots support, and Omaha is a good city for that," Terry said on Tuesday as he left Eppley Airfield and headed back to Washington, D.C....