The Winner

If you live in Massachusetts’ 4th Congressional District, Rep. Jake Auchincloss (D-MA) will keep representing you after winning a fourth term. The Associated Press called the race for Auchincloss at 10:39 p.m. Eastern time on election night, Tuesday, Nov. 3. ​

Auchincloss has 192,770 votes (66.4%) to 97,619 (33.6%) for Republican Thomas Stalcup, a margin of about 33 points, with an estimated 99% of votes counted, according to Associated Press election results. He returns to a House where Democrats will hold the majority.

The Race

This was Auchincloss’ first race against a general-election opponent since 2020, when he beat Republican Julie Hall with 61%. He ran unopposed in the 2022 and 2024 general elections, according to the state’s election statistics.

Stalcup, a Brookline physicist who runs a company that designs software for remote weather stations, was an independent until he joined the Republican Party to run, and he campaigned on lowering drug prices and reducing U.S. military involvement abroad, according to Boston University News Service. Stalcup was unopposed in the Sept. 1 Republican primary, while Auchincloss beat Jason Poulos 72.3% to 27.7% in his first primary challenge since winning the seat, according to Ballotpedia’s race page. Cook Political Report and Inside Elections rated the race Solid Democratic, and Sabato’s Crystal Ball rated it Safe Democratic.

The district takes in parts of Middlesex, Norfolk, Bristol and Plymouth counties, including Newton and Brookline, according to the Census Bureau’s district map. About 787,000 people live there, and residents are 77.4% white, 6.8% Asian, 6.7% Hispanic and 3.7% Black.

The median household income is $116,100, and the median age is 41. Of adults, 49.9% hold at least a bachelor’s degree, unemployment is 4.8% and 7.8% of residents live below the poverty line.

What’s Next

Auchincloss’ new term begins Sunday, Jan. 3. He serves on the House Energy and Commerce Committee and its energy, health and environment subcommittees, according to his AllCiv committee page, and Democrats will chair the committee in the new majority. During the campaign, his spokesperson said his focus was defending democracy, lowering prices in Massachusetts and strengthening the Democratic Party.

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