Updated Nov. 6 at 2:12 a.m.

The Democratic supermajority in the Vermont House is no more. 

Republicans picked up 18 seats in the 150-member chamber on Tuesday, dramatically reshaping power dynamics in the House. They’re set to hold 55 seats in the next biennium — enough to prevent Democrats and Progressives, who will hold 92 seats together, from overriding Republican Gov. Phil Scott’s vetoes. Three independents won races Tuesday, according to unofficial results from the Vermont Secretary of State’s Office.

The chairs of two House committees were among several Democratic incumbents unseated Tuesday — as was an assistant majority leader of the party — ensuring major changes to the chamber when lawmakers return to Montpelier in January.

The outcome mirrored that of the Vermont Senate, where Republicans toppled four incumbents and picked up two additional seats in the 30-member body. 

Vermont Republican Party Chair Paul Dame said the Republican successes in legislative races will force Democrats to work with Republican Gov. Phil Scott, who cruised to reelection Tuesday.

“I don’t think we’ve had a night this good in 10 years,” Dame said. “Tonight, voters have weighed in on how to solve that stalemate. They said, ‘You should have been listening to the governor in (the) last two years.’”

Speaking at an election party in South Burlington on Tuesday night, House Speaker Jill Krowinski, D-Burlington, bemoaned the outcomes of that day’s elections. 

“Our stomachs are in knots tonight about what’s happening with the national election and elections here at home,” said Krowinski, flanked by about a dozen House colleagues. “We are still waiting to get final results from across the state. We’ve picked up some seats. We’ve lost some seats. It’s difficult, but what I want Vermonters to know is that we still have your back.”

The loss of two committee chairs was a particularly tough blow for Democrats.

Rep. Diane Lanpher, D-Vergennes, who chairs the House Appropriations Committee, came in third in a four-way race for two seats in the Addison-3 district, according to unofficial results from the Secretary of State’s Office. 

Republican Rob North finished first with 24.67% of the vote. Lanpher’s fellow incumbent, Rep. Matt Birong, D-Vergennes, finished second with 21.86%. Lanpher picked up 21.7%, finishing just 17 votes behind Birong. Republican Joseph Baker took 20.63%.

Lanpher’s leadership position on the powerful money committee is among the most coveted posts in the House and helps guide state spending. She was first elected in 2008, led the House Transportation Committee and took over the appropriations panel in 2023. 

Rep. Mike McCarthy of St. Albans, the chair of the House Government Operations and Military Affairs Committee, lost his reelection bid to Republican Joe Luneau in the single-member Franklin-3 district. Luneau won 52.53% to McCarthy’s 44.43%.

In the Rutland-7 House district, Rep. William Notte, one of the Democrats’ assistant majority leaders, was also defeated. Republican Chris Keyser won 55.9% of the vote to Notte’s 40.43%.

Other House Democratic incumbents ousted Tuesday included:

• Rep. Josie Leavitt in the Grand Isle-Chittenden district
• Rep. Dennis Labounty in the Caledonia-3 district
• Rep. Robin Chestnut-Tangerman in the Bennington-Rutland district
• Rep. Jim Carroll in the Bennington-5 district

Jim Dandeneau, executive director of the Vermont Democratic Party, said in an interview around 11:15 p.m. at the party’s election night gathering in South Burlington that the state GOP’s — and particularly Scott’s — messaging over property taxes proved to be more effective on the campaign trail than what he called Democrats’ ‘herculean work’ knocking on doors and engaging with voters on the ground.

Scott and the GOP, Dandeneau said, “overwhelmed people’s concerns about the future of our democracy with concerns about the future of their own pocketbooks.”

“We were fighting this fight one person at a time, one household at a time,” he added, holding several boxes of uneaten finger foods from the party’s hors d’oeuvres spread as workers began to break down the event space. “He was blanketing the airwaves with his messaging about cutting taxes. That ended up being not great for us.”

Shaun Robinson and Sarah Mearhoff contributed to this story.