Unofficial election results show Democrat Alicia Limtiaco has defeated incumbent Republican James Moylan to win Guam's nonvoting at-large delegate seat in the U.S. House of Representatives on Tuesday.

Unofficial tallies give Limtiaco 15,645 votes, or 51 percent, compared with Moylan's 14,983 votes, or 48.84 percent. The margin stands at 662 votes, with 49 write-in ballots recorded. Voter turnout reached 53.1 percent among 59,146 registered voters, according to the preliminary count.

Moylan, who won the seat in 2022 and secured reelection in 2024 with 52.69 percent of the vote, conceded the race and congratulated Limtiaco. He praised her campaign and pledged a smooth transition.

Limtiaco, a former Guam attorney general, won her party's primary in August with nearly all votes cast. The general election marked a flip of the seat from Republican to Democratic control.

Guam's delegate can introduce legislation and vote in committees but holds no vote on the House floor. The result does not affect the balance of voting power in Congress.

This outcome represented the first congressional seat flipped in the 2026 midterm elections, as mainland polls remained open when Guam completed its count. The nonvoting position allows the delegate to advocate for territorial issues including military basing, federal funding, and local governance matters important to Guam residents.

Unofficial results remain subject to final certification by election officials. Both campaigns have indicated they will monitor the process closely in the coming days, though the result is not expected to change.