Republicans kept control of the Ohio House after the Nov. 3, 2026, election, but Democrats won at least 42 of its 99 seats and ended the GOP’s supermajority as Amy Acton won the governor’s race, costing Republicans their state trifecta.

Before the election, Republicans held 65 House seats to Democrats’ 34; all 99 districts were contested, and at least 60 seats were needed for a supermajority.

Democrats had targeted the chamber to break that supermajority, needing to flip at least six Republican-held districts while holding their own; the Democratic Legislative Campaign Committee targeted 11 districts, including three Democratic-held seats.

Ballotpedia identified 11 battleground districts, eight held by Republicans and three by Democrats, with four races open.

Democrats were leading in nine Republican-held districts statewide, while Republicans narrowly led in three other close races; Republican Phil Plummer won a state Senate seat by a wide margin and called it a very tough night for Republicans.

Three Montgomery County House seats flipped or appeared likely to flip to Democrats: Rose Lounsbury defeated Andrea White, Daquan Neal won a formerly Republican-held seat, and Tom Herner led Tom Young by 134 votes in a race still awaiting ballots and possibly a recount.

With at least 40 seats, Democrats can block the supermajority needed to propose constitutional amendments or override a governor’s veto; overriding a veto requires three-fifths support in both chambers.

The new balance is expected to give Democrats more leverage in negotiations, though its effect on legislation is unclear; Desiree Tims said breaking the supermajority could curb extreme partisan lawmaking and help good bills advance.

Democrats also won the secretary of state, treasurer and attorney general offices; Allison Russo will oversee elections and chair the ballot board, while incoming Attorney General John Kulewicz will decide how vigorously the state defends challenged laws and policies.

The next two-year state budget will be an early test: Acton must submit her proposed operating budget by March 15, after which the House and Senate will revise and vote on it before sending it back to her.

In the last budget cycle, Gov. Mike DeWine issued 67 line-item vetoes and the legislature overrode one; DeWine said he would have vetoed more provisions if he believed lawmakers had the votes to overturn them.

As governor, Acton can use line-item vetoes to remove individual budget provisions; she campaigned on fully funding public schools, cutting spending on private-school vouchers and opposing Medicaid cuts.