(The Center Square) – Indiana voters will head to the polls Tuesday for the state’s primary election. The Republican gubernatorial race is expected to be the main event, although recent polling shows it likely won’t be a close finish. Six are seeking the nomination to serve as the party’s nominee for the Nov. 5 general election ballot. Two-term Republican incumbent Gov. Eric Holcomb cannot seek re-election. U.S. Sen. Mike Braun is the heavy favorite heading into Tuesday. According to a State Affairs/Howey Politics Indiana survey released last month, 44% of likely Republican voters said they wo…