Six Republicans are vying for the seat being vacated by outgoing Gov. Eric Holcomb, who is term-limited. Holcomb has not endorsed a candidate.
The race is the most expensive primary in Indiana history, with about $20 million spent in the first three months of 2024 alone.
The winner of the GOP primary will face long-shot bids in November from the sole Democratic candidate, Jennifer McCormick, and the Libertarian nominee, Donald Rainwater.
All six Republican candidates have cast themselves as outsiders, yet five are well-established figures who hold or previously served in statewide roles.
U.S. Sen. Mike Braun has been endorsed by Republican former President Donald Trump. Trump won the state by 16 percentage points in the 2020 general election.
Braun has name recognition and money; his campaign spent over $6 million in 2024, according to the latest summary report. He also is known for flipping a Democratic Senate seat when he beat Joe Donnelly in 2018.
Lt. Gov. Suzanne Crouch, known for running alongside Holcomb twice, has campaigned to slash the state’s income tax and boost addiction and mental illness services. She ended the most recent fundraising period with the most cash on hand of the candidates with $3 million as of April 1, but spent less — $2.1 million — in the first three months of the year.
A Crouch victory likely would ensure Indiana has its first female governor. McCormick, the Democratic nominee, is unchallenged in her primary.
Businessman and former commerce secretary Brad Chambers spent $6.7 million this year and reports show he has contributed $9.6 million to his campaign. Chambers’ messaging has been comparatively more moderate, focusing on the economy and support for law enforcement. He has avoided criticizing Holcomb where other candidates have knocked his administration on COVID-19 pandemic-era policies.
Eric Doden has a similar resume, with a stint as the state’s commerce secretary. His top priorities include a plan invest in Indiana’s “Main Street,” or small towns. He spent $5.2 million in the first three months of this year and last reported having about $250,000 of cash on hand.
Once seen as a probable Hoosier governor, former Attorney General Curtis Hill has struggled to compete. Hill lost the Republican delegation nomination in 2020 following allegations he groped four women at a party in 2018. Jamie Reitenour also is running, with backing of Hamilton County Moms For Liberty and has said she would appoint its leader to head the state education department.
Live election results will begin tabulating after polls close at 6 p.m. local time.