Matt Dolan (R), Frank LaRose (R), and Bernie Moreno (R) are running in the Republican Party primary for U.S. Senate in Ohio on March 19, 2024.

The winner of the primary will run against incumbent Sherrod Brown (D), who is running for a fourth term.

Dolan is an attorney and state legislator who is running on his legislative record. Dolan says he is the best-positioned candidate to win the general election because his opponents “have routinely broken their promises to voters and committed gaffes that place Republican efforts to defeat Sherrod Brown and take back the U.S. Senate in jeopardy.”

LaRose is the Ohio Secretary of State and a former state legislator. LaRose says he is the “battle-tested conservative with the experience, work ethic, consistent record, and sense of service to make a difference.” LaRose says he is the only candidate to have never lost a statewide primary or election and the only candidate to have never registered as a Democrat.

Moreno is a businessman with a background in auto sales. Moreno says he is running because “for too long, the men and women who move Ohio forward, American workers, have been left behind by career politicians like Sherrod Brown and Joe Biden.” Moreno compares himself to former President Donald Trump (R), who endorsed him.

As of January 30, 2024, The Cook Political Report with Amy Walter, Inside Elections with Nathan L. Gonzales, and Larry J. Sabato’s Crystal Ball each rated the general election a toss-up. Brown won re-election 53%-47% in 2018, but other recent statewide elections have favored Republicans. Brown is the only Democrat to hold a statewide elected office in Ohio.