Presumptive GOP presidential nominee Mitt Romney campaigns in Frankenmuth, Mich., on Tuesday alongside his wife, Ann, and Michigan Gov. Rick Snyder. Mr. Romney's campaign called his six-state bus swing the "Every Town Counts" tour. (Associated Press)

Presumptive GOP presidential nominee Mitt Romney campaigns in Frankenmuth, Mich., on Tuesday alongside his wife, Ann, and Michigan Gov. Rick Snyder. Mr. Romney's campaign called his six-state bus swing the "Every Town Counts" tour. (Associated Press)