On Tuesday, voters in Ohio and Indiana will head to the polls, participating in primary elections for various positions. In Ohio, residents will cast their votes in primaries for the Senate, House, and governor, while Indiana voters will focus on House and state races. Indiana, known for its strong Republican leaning, will attract attention from former President Trump, particularly regarding certain state races.
Key races to monitor during Tuesday’s elections include several in Indiana, which have piqued the interest of Trump. Historically, state senate races do not garner presidential attention. Chad Kinsella, a professor at Ball State University, remarked that he cannot recall a president ever showing concern for a state Senate contest.
Trump’s interest in Indiana’s races began last year, when the state contemplated redistricting its congressional map to benefit Republicans across all nine districts. Currently, Indiana has a partisan split of 7-2, with seven districts represented by Republicans and two by Democrats. Despite pressure from the White House to support redistricting efforts, many state senators faced threats and chose to oppose the measure, with 21 Republicans voting against it.
Indiana’s staggered election system means that 25 of the 50 state senators are up for reelection on Tuesday, including seven who opposed the redistricting. Trump, along with Indiana Governor Mike Braun, has backed primary challengers against these incumbents, contributing financial support from allied groups to their campaigns. The Indiana Senate Republican Caucus has significantly increased its funding for the races, surpassing expenditures from the previous year.
Matthew Bergbower, a professor at Indiana State University, observed that the Trump-endorsed challenger Brenda Wilson’s campaign relies heavily on her endorsement, while incumbent state Senator Greg Good has garnered local endorsements, highlighting a contrast between local and national appeal in the election.
Moreover, Trump is keen to see state Senate President Rodric Bray defeated, although Bray is not up for reelection until 2028. If enough challengers succeed, Bray’s leadership role could be at risk.
Kinsella noted that the Republican primary electorate tends to be more conservative than the general voter population. While they may wish to support Trump, voters might overlook endorsements due to the complexity of the ballot.
The outcomes of Tuesday’s primaries will shape a competitive landscape for the U.S. Senate, particularly as Democrats aim to gain a seat in Ohio. Former Democratic Senator Sherrod Brown is attempting a comeback after losing to Republican Senator Bernie Moreno in 2024. Brown seeks to challenge Senator John Husted, who was appointed to his position after Vice President JD Vance’s departure. Before facing Husted, Brown must first navigate a primary against political newcomer Ron Kincaid.
Brown’s candidacy represents a significant recruitment success for Democrats. Although he narrowly lost his last bid for a fourth Senate term, his defeat came by less than four percentage points in a state that Trump won by over ten points. Democrats view this election cycle as an opportunity to flip the seat, bolstered by a prominent candidate and potential midterm momentum.
In Ohio’s 9th Congressional District, five Republican candidates are vying for the chance to challenge long-serving Democratic Representative Marcy Kaptur in the upcoming general election. Kaptur, who has held her seat since 1983, faced a tightly contested race in 2024 against former state representative Derek Merrin, who is running again this year.
The district was redrawn in October 2025 to lean more Republican, which could impact Kaptur’s reelection prospects. The Republican contenders include state Representative Josh Williams, former ICE official Madison Sheahan, healthcare data scientist Anthony Campbell, and Air Force veteran Alea Nadeem.
In the race for governor, two-term Republican Mike DeWine is term-limited and cannot seek reelection. Biotech entrepreneur Vivek Ramaswamy, who previously ran for president in 2020, has received Trump’s endorsement and the support of the Ohio Republican Party to succeed DeWine. Ramaswamy has cleared most of his primary competition, with Attorney General Dave Yost dropping out and Lt. Governor Jim Tressel choosing not to run. Businessman Casey Putsch, known as “The Car Guy,” remains in the race.
The winner of the primary election will face Democrat Amy Acton, the former director of public health in Ohio, who is running unopposed in her primary.
