President Barack Obama and Republican Mitt Romney went back on the attack on Thursday, breaking a storm-induced campaign truce to hit the road and pound home their closing messages in the final stretch of a tight battle for the White House.With five days left until Tuesday’s election, Obama received an endorsement from New York Mayor Michael Bloomberg, resurrected his 2008 "change” slogan and said he was the only candidate who had actually fought for it.Romney criticized Obama as a lover of big government who would expand the federal bureaucracy.National polls show the race deadlocked, and Obama and Romney will spend the final days in eight swing states that will decide who wins the 270 electoral votes needed to capture the White House.Obama made Wisconsin the first stop on a four-state swing on Thursday that also took him to rallies in Nevada and Colorado before going to Ohio for the night. Romney had a full day of campaigning across Virginia."You may be frustrated at the pace of change, but you know what I believe, you know where I stand,” Obama told a crowd of 2,600 people on an airport tarmac in Wisconsin, a state that is a vital piece of his electoral strategy. "I know what change looks like because I’ve fought for it.”At a rally in Doswell, Virginia, Romney criticized Obama’s comment that he would like to consolidate government agencies that deal with business issues in a new department under a secretary of business."I don’t think adding a new chair to his Cabinet will help add millions of jobs on Main Street,” Romney said.