INDIANAPOLIS (AP) — The farmer versus the Marine — those are the wholesome self-portraits the two candidates seeking Indiana’s Republican nomination for U.S. Senate have tried their best to paint for voters before Tuesday’s primary.

U.S. Reps. Marlin Stutzman and Todd Young each campaigned as stalwart conservatives with similar platforms to succeed retiring Republican Sen. Dan Coats. Yet the contest has featured increasingly biting exchanges.

Young depicts the tea party-backed Stutzman as an ideologue who prioritizes obstructionism over passing legislation. Stutzman characterizes Young as an establishment pawn at a time when voters are increasingly frustrated with Washington.

The 39-year-old Stutzman is from Howe and co-owns family farm operations in northern Indiana.

The 43-year-old Young is a Naval Academy graduate who was a Marine Corps intelligence officer and aide to Sen. Richard Lugar.