Senate Map Drives Polymarket’s 65.5% Democratic Odds
US Midterms Betting Odds: Polymarket’s market for Which party will win the Senate in 2026? showed Democrats at 66% and Republicans at 35% as of September 23, 2026, at 7:30 AM UTC. That is a full reversal from earlier snapshots in the campaign that had Republicans as the favorite, and it matters bec…