Three weeks before the midterm elections on November 6th and Republicans are pulling out the big guns. Former President George W. Bush appeared at a private fundraiser in Carmel Monday to campaign for U.S. Senate candidate Mike Braun. So far, the polls are tight between Braun and incumbent Democratic Senator Joe Donnelly. Donnelly will be making a stop in Muncie later today. Donnelly will thank volunteers during a stop at the Indiana Democratic Coordinated Campaign’s Muncie field office at 5:00 this afternoon.