Republican Sen. John McCain, a staunch defender of the Iraq war, on Tuesday faulted the Bush administration for misleading Americans into believing the conflict would be "some kind of day at the beach." The potential 2008 presidential candidate, who a day earlier had rejected calls for withdrawing U.S. forces, said the administration had failed to make clear the challenges facing the military. "I think one of the biggest mistakes we made was underestimating the size of the task and the sacrifices that would be required," McCain said. "Stuff happens, mission accomplished, last throes, a few dead-enders. I'm just more familiar...