Both Sen. Joe Donnelly and Republican challenger Mike Braun say they're ready for a fight over the next six months.

Joe Donnelly is one of 10 Democratic senators up for re-election this year in states President Donald Trump won in 2016.

Braun emerged the victor Tuesday from a bruising Republican primary against U.S. Reps. Luke Messer and Todd Rokita.

Their race has been dubbed one of the nastiest in the country. It's a campaign where attacks have been many, while policy differences are few.

Indiana Public Broadcasting's Brandon Smith discussed the GOP primary campaign with U.S. Rep. Todd Rokita.

The final debate between Republican U.S. Senate candidates Mike Braun, U.S. Rep. Luke Messer (R-Greensburg) and U.S. Rep. Todd Rokita (R-Brownsburg) was focused almost entirely on attacks between each candidate.

Indiana Public Broadcasting's Brandon Smith sat down with Mike Braun to discuss issues in the Indiana Republican primary for U.S. Senate a race that's been called one of the nastiest in the nation.

Two sitting congressmen and a former state lawmaker are locked in tight competition for a chance to unseat Democrat Joe Donnelly in November.

Candidates Todd Rokita, Luke Messer and Mike Braun explored common ground through much of the evening.

Supporters for senator's re-election campaign gathered in Indianapolis to make the case women should support Donnelly for a second term.