Polymarket flips to 51-49 Republican edge in Senate control odds
Polymarket has shifted its Senate control odds from favoring Democrats to giving Republicans a narrow 51-49% edge, according to the platform's pricing. The move reflects a broader shift in expectations for the chamber. Polymarket posted on X that Republicans have surged past Democrats in Senate midterm odds and are projected to remain in power, a post that drew 369 replies. The two sources do not provide specific market volume, dollar amounts bet, or identify any particular event triggering the odds movement beyond the general characterization of changed expectations for the 2026 midterm elections.
PredictIt and Kalshi traders now face a Polymarket benchmark that has broken from months of Democratic pricing, forcing them to either chase the Republican move or bet against a platform that typically leads political futures pricing by 24-48 hours.