The Race
It's primary day soon in Massachusetts's 4th U.S. House District. The Democratic primary features two candidates, while Republicans have one in the race, and incumbent Jake Auchincloss is running for re-election on the Democratic side. Come November, nine general election candidates will compete for this seat. The Democratic primary is scheduled for September first, with the general election following on November third.
Ratings
Multiple rating organizations, including the Cook Political Report, rate Massachusetts's fourth congressional district as Solid Democratic as of June. In other words, barring a major upset, experts predict that Democrats will secure the seat in November.
Prediction Markets
As far as the Democratic primary, Kalshi prediction markets give Auchincloss a 94% chance of taking the nomination, as of July 30. The site gives Democrats a 99% chance of taking the district in November, reflecting the expert ratings.
Experts vs. Ratings
The convergence here is remarkable. The Cook Political Report ratings and Kalshi prediction market odds both point to a Democratic lock. Whether you trust the political scientists or the people putting their money where their mouths are, the message is the same: this district leans hard blue.
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