Mitt Romney and Paul Ryan will be in the Tri-State Tuesday, Sept. 25.
The exact location has not yet been announced.
The Republican presidential candidate and running mate Paul Ryan are launching a three-day bus tour across Ohio on Monday.
Romney's campaign said Ryan will begin the tour Monday in Lima and then visit Cincinnati on Tuesday.
Romney will also be in Dayton on Tuesday.
The tour covers six cities. Besides Cincinnati, Dayton and Lima the others stops will be in Cleveland, Columbus, and Toledo.
No Republican has ever taken the White House without winning Ohio.