Indiana Secretary of State Todd Rokita has won the GOP primary in retiring Rep. Steve Buyer’s (R-Ind.) district and will be a strong favorite to replace him in Congress.

Rokita, who turned down a run for Senate earlier this year, led his nearest competitor 43-16 with 77 percent of precincts reporting. The race has been called by AP.

He will likely face Democrat David Sanders in November. Sanders led his primary with just under 50 percent of the vote.

Sen. John McCain (R-Ariz.) won Buyer's district with 56 percento of the vote in the 2008 presidential race.