Republican Eric Holcomb will be working with GOP supermajorities in the Legislature when he takes office as Indiana's new governor in January.
Republicans won at least 69 House seats, putting them back over the two-thirds majority mark needed to take action even if no Democrats are present.
Democrats had hoped in Tuesday's election to pick up at least the five seats needed to break the supermajority, but have gained only a single seat with one race winner not yet called.
Republicans also are keeping their state Senate supermajority by holding at least 40 of its 50 seats.
Holcomb is beginning work on his move from being lieutenant governor to the state's top office by meeting Wednesday with his transition team.
Holcomb won the governor's office as part of a Republican wave that swept all state offices.