Missouri Democrats emerged from Tuesday’s election with their largest legislative delegation since 2012, winning enough seats to end Republican supermajorities in both chambers. The party had sought to flip four House seats and one Senate seat. It instead captured 16 House seats and two Senate seats, leaving Republicans with smaller majorities in Jefferson City.
The St. Louis suburbs accounted for a substantial share of the gains. Democrats picked up three legislative seats representing St. Charles County and four representing St. Louis County, while also defeating Republican U.S. Rep. Ann Wagner of Ballwin. Republican state Reps. Brad Christ and Phil Oehlerking were among those who lost. Democrat Mary Ann Perkins defeated Oehlerking by 2,612 votes, taking 56 percent to his 41 percent in final but unofficial results. Oehlerking had survived challenges in the previous two cycles by fewer than 200 votes.
State Rep. Mark Boyko, a Kirkwood Democrat who led his caucus’ candidate recruitment effort, recruited Perkins and other contenders. Democrats entered races in all but five of the House’s 163 districts, substantially expanding their coverage from the previous cycle. Republicans left nearly 30 seats uncontested. Boyko attributed the improved recruitment climate to growing frustration with Republicans, citing both the national political environment and state legislation that he said did not reflect Missouri voters’ views.
Matt Vitale, the Democrat who defeated Christ, emphasized public school funding and affordability during his campaign. Christ had been the architect of legislation placing St. Louis police under state control, although Vitale did not make that role a major campaign issue. St. Louis Alders Michael Browning, Daniela Velazquez, Alisha Sonnier and Megan Green helped Vitale by campaigning door to door.
Green’s connection with Vitale dated to around 2021, when they opposed a proposal for a privately funded surveillance aircraft over St. Louis. She said she directed resources toward his campaign through Our Revolution, the organization founded by Bernie Sanders, and encouraged city residents interested in a county contest to get involved. Anti-Vitale mailers featured Green’s image, while Christ also sought to portray his opponent as opposed to law enforcement. Neither approach prevented Vitale’s victory.
Boyko expects the larger Democratic caucus to affect legislative outcomes even though Republicans retain control. He pointed to dozens of bills that cleared the House during the previous year by margins of one to five votes. With 16 additional seats, he said, Democrats would have opportunities to produce tangible results for constituents.
Paul Lentz, who defeated Republican Rep. Ben Keathley of Chesterfield, also anticipated more cooperation between the parties. He said other representatives had described Republicans leaving rooms when Democrats entered because Republican lawmakers did not need their votes or input. Lentz believes the reduced majority will require lawmakers to work together more often.
Democratic gains extended beyond the St. Louis suburbs to a seat in Cass County in western Missouri. Boyko also highlighted House District 110, covering parts of Wildwood and Eureka. The seat became vacant when Rep. Justin Sparks joined the Department of Homeland Security. According to Boyko, Democrat Claire Heinrich knocked on 10,000 doors and came within 2.2 percent, after the Democratic candidate lost by 25 points two years earlier.
Boyko plans to study the successful campaigns over the coming months and use their approaches to prepare for 2028. District 110 is among the races he wants to target in the next election cycle.
