GOP Presidential Candidate Mitt Romney Campaigns In Michigan

The clock is ticking for Mitt Romney. (Getty)

FLINT, MI, – FEBRUARY 25: Republican Presidential Candidate and former Massachusetts Governor Mitt Romney holds a grassroots rally at the Kettering University Recreation Center February 25, 2012 in Flint, Michigan. The Michigan Primary will be held February 28th. (photo by Bill Pugliano/Getty Images)

GOP Presidential Candidate Mitt Romney Campaigns In Michigan