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Will Democrats or Republicans win control of the Senate?
Our statistical model based on polls and search trends forecasts Democrats having a 53.5% probability of winning the Senate majority.
Last updated: Tue Dec 01, 2020. Updated daily. -28 days left until Election Day.
39.05%
49
SENATE
SEATS (R)
53.54%
51 (+4 seats)
SENATE
SEATS (D)
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Click on a state for more details
Dots indicate a possible change of party
50 | 50 seat spread
With VP, a tie is needed for control
2 to 1 odds of a Democratic majority
50.93 | 49.07 seat spread
Most likely average seat outcome
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OK
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WY
AR
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48121721252933384246505459636771758084889296101
Senate Majority Probability Over Time
Chance of Democrats or Republicans winning a Senate majority over time
Projected Senate Partisan Control
Distribution of Senate race control are generated based on 10k simulations.
Chances of a Republican win in the closest Senate races
Below is the probability of a Republican victory in Senate races within 85% probability.
Chances of a Republican win in swing states
These states were carried by less than 5 points in the 2016 presidential race.
How accurate are our predictions?+
About this forecast
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