Florida Democratic Sen. Bill Nelson will face Republican Connie Mack IV in November after each easily won their respective party primaries.
Nelson had about 80 percent of the vote in early returns Tuesday while Mack had nearly 60 percent. Both had been heavy favorites.
Their wins set up a contest for the Florida U.S. Senate seat once held by Mack's father, Connie Mack III.
Mack was buoyed by the famous name he and his father share with the Hall of Fame baseball manager.
Three other Republicans dropped out of the race when the four-term Republican congressman got in and immediately took a commanding lead in the polls.
Former Rep. Dave Weldon entered the race just three months before the primary but wasn't able to build up name recognition or the resources to mount a successful challenge.
Nelson faced minor opposition from political unknown Glenn Burkett.
© Copyright 2015 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.