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How many Senate seats will Republicans hold after the 2028 election? — When the new Senate convenes in Jan 2029
Starts:Oct 31, 2026, 2:00 AMEnds:Feb 1, 2029, 3:00 PM
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Total volume
$7.8K
Largest spread
—
Outcomes
15
Platforms
1
Markets
1
Markets
Every market on this event, moneyline first. Select one to compare it across platforms in the side panel.
| Outcome | Best | Volume | Gemini | Kalshi | Limitless | Novig | Polymarket | Polymarket US |
|---|---|---|---|---|---|---|---|---|
At least 46 Favorite | 40.0%Kalshi | $526 | — | — | — | — | — | |
At least 47 | 27.0%Kalshi | $1.9K | — | — | — | — | — | |
At least 48 | 23.0%Kalshi | $811 | — | — | — | — | — | |
At least 50 | 14.0%Kalshi | $2.3K | — | — | — | — | — | |
At least 52 | 6.0%Kalshi | $1.6K | — | — | — | — | — | |
At least 55 | 5.0%Kalshi | $136 | — | — | — | — | — | |
At least 46Favorite
40.0%Best · Kalshi$526
At least 47
27.0%Best · Kalshi$1.9K
At least 48
23.0%Best · Kalshi$811
At least 50
14.0%Best · Kalshi$2.3K
At least 52
6.0%Best · Kalshi$1.6K
At least 55
5.0%Best · Kalshi$136
Description from Kalshi. A cross-platform summary is generated once this event is matched across platforms.
Independent and unaffiliated members who caucus with Republicans will be included. Every voting seat in the Senate counts, including any seat not on the 2028 ballot. Vacant and disputed seats count toward no party.
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