Which party will control the Senate after the midterm elections?

Smarkets

Latest Odds

Republicans
54.20%
Democrats
53.89%
SmarketsMay 10th 2026

Historical Data

DateCandidateOdds
May 9th 2026Democrats55.13%
Republicans54.65%
May 8th 2026Democrats55.42%
Republicans54.33%
May 7th 2026Democrats55.27%
Republicans54.49%
May 6th 2026Democrats56.11%
Republicans53.31%
May 5th 2026Democrats56.11%
Republicans52.84%
May 4th 2026Democrats56.04%
Republicans52.84%
May 3rd 2026Democrats56.61%
Republicans54.82%
May 2nd 2026Democrats55.88%
Republicans53.24%
May 1st 2026Democrats55.33%
Republicans54.65%
Odds Snapshot
2026Midterms
House
DEM77¢
+53.3vs GOP
Senate
GOP58¢
+15.7vs DEM
2028Presidential
President
Vance17¢
+1.3vs Newsom
Dem Nom
Newsom24¢
+12.6vs AOC
GOP Nom
Vance34¢
+7.4vs Rubio
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Which party will control the Senate after the midterm elections?