James Walkinshaw won a Virginia special election Tuesday to succeed the late Rep. Gerry Connolly, delivering a decisive victory that will narrow the Republican majority in the U.S. House.

Walkinshaw, 42, a former chief of staff to Connolly, defeated Republican Stewart Whitson by roughly a 3-to-1 margin in the commonwealth’s 11th Congressional District, a Democratic stronghold about 20 miles outside Washington, D.C. He said after the race that he was "humbled by the confidence" voters placed in him and pledged to work to make life more affordable for families, protect freedoms and ensure the district has a strong voice in Congress.

The seat became vacant in May after Connolly died of cancer. Connolly had endorsed Walkinshaw shortly before his death and his campaign transferred about $1.8 million to a political action committee backing Walkinshaw, according to Federal Election Commission records cited by news outlets. Connolly had represented the 11th District for more than 16 years and won his most recent term in November 2024 by nearly 34 percentage points.

Walkinshaw billed himself as a critic of former President Donald Trump, and Democrats framed the victory as a rebuke of the Trump administration. Party officials said the win was an encouraging sign ahead of the 2026 midterm elections.

After Walkinshaw is sworn in, the Republican margin in the House will narrow to 219-213, reducing the GOP’s buffer and meaning Republicans can only afford to lose two votes on strictly party-line measures when the full chamber is present. The slim majority had been briefly expanded earlier this year after the deaths of three House Democrats left seats vacant, a shift that had aided House GOP leaders during the passage of high-profile legislation over the summer.

Rep. Gerry Connolly

Special elections to fill other vacant House seats are scheduled later this year, Reuters reported: one on Sept. 23, another on Nov. 4 and a contest for a Republican-held seat on Dec. 2. Democrats hope continued success in such special contests could signal broader momentum heading into the 2026 midterms.

Stewart Whitson, the Republican nominee, campaigned in the district but was unable to overcome its strong Democratic lean. Local and national Democrats emphasized high turnout in the consolidated Fairfax-area district and the organizational strength built around Connolly’s long tenure.

Republican candidate Stewart Whitson (left)

Walkinshaw’s immediate task will be to be formally sworn into the House and be seated for votes, a process that is expected to occur soon. With the House closely divided, his addition will be watched by both parties, as it changes the arithmetic for upcoming legislative fights and committee votes.

The 11th District’s partisan history and Connolly’s long incumbency made the outcome broadly expected; party strategists said the margin of victory and the campaign’s turnout operation offered Democrats a timely boost. Republicans said they would continue to contest competitive districts nationwide ahead of the next congressional elections.

Officials will certify the election results in the coming days, after which Walkinshaw will assume the seat and begin participating in House business. Media and party officials will monitor whether the result affects legislative dynamics in the narrowly divided chamber.