Home  › News  › US sports betting

Election day markets point to a heavy democratic majority

Prediction markets and polls strongly favor a blue wave across both congressional chambers.

Written by the BettingEdgeHub desk, 3 November 2026

Voters head to the polls with both prediction platforms and traditional polling models pointing toward major Democratic gains. Declining approval for President Donald Trump, economic worries, and opposition to the Iran conflict are driving the shift. Democratic candidates hold a heavy advantage in both the House of Representatives and the Senate.

House and Senate odds

Polling models assign a high probability to Democrats taking control of both chambers of Congress. The numbers show a ninety three percent chance for the House and a seventy four percent chance for the Senate. Prediction markets reflect a nearly identical consensus for these outcomes. This strong alignment differs from the previous presidential election when polls and prediction markets disagreed significantly.

Key senate battlegrounds

Traders are closely watching eight specific races that will decide the balance of power in the Senate. Midday trading on election day shows five of those key contests leaning toward the Democrats. Only two lean toward the Republicans while one remains a toss up. Prediction markets heavily favor the Democrats to secure fifty three or more seats.

Betting on state legislation

Beyond national politics, gamblers are watching specific state ballot measures regarding gambling expansion. Nebraska voters are deciding on constitutional amendments to permit online sports betting. Meanwhile, voters in three Indiana counties are voting on whether to allow a new local casino license.