About This Market
Traders give Lisa Murkowski leaves the Republican Party in 2026? [Yes] about a 13.1% chance. John Fetterman follows at 9.7%, Thomas Massie follows at 5.8%, and Don Bacon follows at 2.8%. Compare prices from Kalshi and Polymarket. The largest cross-platform price difference is 7.8 percentage points.
Traders give Lisa Murkowski leaves the Republican Party in 2026? [Yes] about a 13.1% chance. John Fetterman follows at 9.7%, Thomas Massie follows at 5.8%, and Don Bacon follows at 2.8%. Compare prices from Kalshi and Polymarket. The largest cross-platform price difference is 7.8 percentage points.
Kalshi is tracking the potential party switches or departures of politicians in 2026. This event is significant as shifts in party affiliation can impact legislative dynamics and electoral strategies leading up to the next election cycle.


