US Senate Overall Position (100 Seats)
53R - 47D Current Control
51 seats needed for Majority. 67 seats are not up for re-election (34R, 33D). 33 Class II seats are contested in 2026 (20 held by Republicans, 13 by Democrats).
Safe / Not Contested
34 R • 33 D
Contested 2026
33 Seats
Defending in 2026
20 R • 13 D
2026 Senate Majority Win Odds (Live Prediction Markets):
Democrats: --%
--% :Republicans
Source: Official Congress Roster & Manifold Markets
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US House Overall Position (435 Seats)
218 to Win Majority
All 435 voting seats across all 50 states are up for re-election. Current composition: 220 Republicans, 213 Democrats, 2 Vacancies.
Total Seats Up
435 (100%)
Majority Needed
218 Seats
Current Margin
+7 GOP Lead
2026 House Majority Win Odds (Live Prediction Markets):
Democrats: --%
--% :Republicans
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Equal-area cartogram representing contested Senate & battleground seats.
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