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2026 candidates we're tracking in MA-4
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Jake Auchincloss
Democratic
Incumbent
Auchincloss is a Marine Corps veteran who deployed to Afghanistan and Panama and holds a bachelor's degree from Harvard College and an MBA from MIT, per the campaign site. He served on the Newton City Council before being elected to represent Massachusetts' 4th District, per the campaign site.
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Thomas Stalcup
Republican
Thomas Stalcup is a physicist with a doctorate in condensed-matter research who runs a business designing software for remote weather stations, per his campaign site and Brookline.News. He lives in Brookline, where he has served on an elected school council and directed the town science fair, per his campaign site.
About this race
Massachusetts's 4th Congressional District elects one member of the U.S. House of Representatives to a two-year term. Every House seat in the country is on the ballot in 2026. The Massachusetts primary is Tuesday, September 1, 2026, and the general election is Tuesday, November 3, 2026.
Massachusetts primary details → · Massachusetts voter guide →