Missouri Republicans will enter next year's legislative session without supermajorities in either chamber after Democrats gained 16 House seats and two Senate seats in Tuesday's election. The results end a period dating to 2012 during which Republicans held at least two-thirds of the seats in both chambers, giving the party greater power over legislation.

Republicans will retain their legislative majorities in Jefferson City, with a 95 to 68 advantage in the House and a 22 to 12 advantage in the Senate. Democrats needed to flip just three House seats to break the supermajority there and exceeded that target substantially. In the Senate, they secured the two seats required to reach the same goal.

Outgoing Minority Caucus Chair Emily Weber, a Kansas City Democrat, credited the gains to candidate recruitment, fundraising and sustained contact with voters. Speaking with St. Louis Public Radio's Sarah Kellogg, Weber said Democrats raised $6.1 million to compete, their largest fundraising total, and fielded 155 candidates. She described the result as an extraordinary achievement for the party.

Democratic victories included seats in St. Louis County, St. Charles County, the Springfield area, Cole County and Cass County. Weber said the geographic spread did not entirely surprise her. In her view, Missouri contains numerous politically competitive areas where strong candidates and direct conversations with residents can help Democrats win.

Weber pointed to door knocking, events and town halls as central parts of the campaign effort. She said constituents were frustrated with Jefferson City and felt lawmakers were failing to hear their concerns. She attributed the election results in part to voters seeking a change in the issues receiving attention during legislative sessions.

Although Democrats had been within reach of breaking the supermajority two years earlier, Weber said this year's outcome reflected an operation built around winning competitive seats. She resisted describing the gains as a blue wave, instead emphasizing strategic investment, recruiting candidates and knocking on nearly half a million doors.

With the supermajorities broken, Weber said Democrats would have more leverage to address issues Missourians were discussing. She expressed hope that lawmakers would spend less time on controversial subjects that produce little progress and devote more attention to problems affecting residents' daily lives.

Weber was uncertain whether Republicans would change their governing approach after the losses, but said she hoped they would. She identified affordability as the leading concern and health care as a major issue ahead. High gasoline prices and utility rates, she said, were among the pressures lawmakers needed to address.