Updated
Updated · The Gardner News · Sep 1
Ed Markey Commands 99% Betting Odds in Massachusetts Senate Primary
Updated
Updated · The Gardner News · Sep 1

Ed Markey Commands 99% Betting Odds in Massachusetts Senate Primary

3 articles · Updated · The Gardner News · Sep 1

Summary

  • Polymarket and Kalshi both put Sen. Ed Markey near a lock to win Tuesday's 2026 Massachusetts Democratic Senate primary, with Markey at 99% or higher and Rep. Seth Moulton below 1%.
  • At 11 a.m. Sept. 1, Polymarket priced Markey "yes" shares at 99.4 cents versus 1.6 cents for Moulton, while Kalshi showed 99.7 cents for Markey and 0.6 cents for Moulton.
  • The lopsided pricing follows a race in which Markey led steadily after betting opened, despite brief Moulton bumps around his April 29 clash with Defense Secretary Pete Hegseth and a June 16 debate.
  • Trading volume also underscored the market's focus on the contest, with $169,413 wagered on Polymarket and $2,252,029 on Kalshi.
  • Whoever wins the Sept. 1 Democratic primary will face Republican John Deaton in November for a Senate seat alongside Elizabeth Warren.

Insights

With millions wagered on prediction platforms, are betting markets replacing traditional polling as the ultimate crystal ball for election outcomes?