Republican presidential hopeful Mitt Romney greets supporters Monday at a rally in Grand Junction, Colo. Though favored to win Colorado's caucuses, the former Massachusetts governor is taking nothing for granted, with a fundraiser planned in Cherry Hills Village and rally set for Centennial. (Associated Press)

Republican presidential hopeful Mitt Romney greets supporters Monday at a rally in Grand Junction, Colo. Though favored to win Colorado's caucuses, the former Massachusetts governor is taking nothing for granted, with a fundraiser planned in Cherry Hills Village and rally set for Centennial. (Associated Press)