Republicans Pick Johnson, McFadden For Top Offices The voting is over and the counting has begun in Minnesota, where the top prizes in the primary were the Republican nominations to take on Democrats Gov. Mark Dayton and U.S. Sen. Al Franken in November. Dayton and Franken had little-known Democratic challengers as each sought a second term. But four major Republican rivals jockeyed for the party's nod to take on Dayton, with no sign of a clear front-runner. Businessman Mike McFadden was favored to challenge Franken in the fall.