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535 Final forecast · Nov 3
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Senate

35 of the Senate's 100 seats are on the 2026 ballot. The other 65 are holdovers who don't face voters this year, and the forecast counts them toward control.

Final forecast ·

Senate results

21 Democratic 13 Republican

Winners recorded for seats on the ballot

1 outstanding of 35 races

Senate final forecast

Democrats control in 78,690 of 100,000 simulated elections.

Democrats control in 78,259 of 100,000 simulated elections.

51 = majority

mean 52.5 Dem-caucus seats Dashed line marks a majority.

51 = majority

mean 52.4 Dem-caucus seats Dashed line marks a majority.

Forecast over time

Dem Rep 5th–95th percentile of seats Data correction

Dem Rep No forecast yet No Senate race this year

Darker is likelier. The palest shades are tossups: the leading side wins 65% of simulations or fewer.

Outstanding races · Show all races

1 of 1 races

Race ▲ Result Final forecast Final chance Margin Lean Polls Last poll
Alaska Senate
Uncalled
TossupTossup Final chanceD 64%D 64% D+1.7 D+1.6 R+13.1 43 Nov 1, 2026