**Seven Republican senators have announced they will not seek re-election in 2026, establishing the current confirmed total and driving the dominant 77.5% market probability for that exact outcome.** Ballotpedia and Wikipedia tracking as of July–August 2026 list the seven Republicans alongside four Democrats among the eleven total Senate incumbents stepping aside. Key announcements include Thom Tillis (NC, June 2025), Joni Ernst (IA, September 2025), Cynthia Lummis (WY, December 2025), Steve Daines (MT, March 2026), and Alan Armstrong (OK, March 2026), with Mitch McConnell (KY) also confirmed among the group. No additional Republican retirements have been announced in the past several weeks, and filing deadlines plus primary schedules have not yet prompted further departures. Traders price lower-probability alternatives such as 11 (8.8%) or 9 (4.2%) to reflect the modest chance of one or two more exits before the cycle closes, consistent with historical patterns of late-cycle decisions. The market reflects trader consensus on the final headcount of GOP senators choosing not to appear on the 2026 ballot.
Experimentelle KI-generierte Zusammenfassung mit Polymarket-Daten. Dies ist keine Handelsberatung und spielt keine Rolle bei der Auflösung dieses Marktes. · Aktualisiert7 77%
11 8.3%
9 4.8%
5 3.4%
$101,009 Vol.
$101,009 Vol.
<5
1%
5
3%
6
1%
7
77%
8
1%
9
5%
10
2%
11
8%
12+
1%
7 77%
11 8.3%
9 4.8%
5 3.4%
$101,009 Vol.
$101,009 Vol.
<5
1%
5
3%
6
1%
7
77%
8
1%
9
5%
10
2%
11
8%
12+
1%
This market will resolve according to the total number of Republican members of the U.S. Senate who are considered to be retiring or not seeking reelection in 2026.
For the purposes of this market, a member may be considered not to seek reelection if:
• They publicly announce they are retiring from Congress and will not run for reelection to their current seat
• They choose to run for a different elected office in 2026 instead of running for reelection to their current seat
• They do not seek their party’s nomination for reelection to their current seat, meaning they neither file for reelection nor participate in their party’s nominating process (such as a primary, convention, or caucus)
Only members whose current term is scheduled to end with the 2026 regular election for the Senate may qualify for this market.
This market will not resolve until after the relevant final 2026 candidate filing deadline has passed in all states, which is expected to occur in late August 2026.
The resolution source for this market will be a consensus of credible reporting.
Markt eröffnet: Dec 12, 2025, 6:43 PM ET
Resolver
0x2F5e3684c...This market will resolve according to the total number of Republican members of the U.S. Senate who are considered to be retiring or not seeking reelection in 2026.
For the purposes of this market, a member may be considered not to seek reelection if:
• They publicly announce they are retiring from Congress and will not run for reelection to their current seat
• They choose to run for a different elected office in 2026 instead of running for reelection to their current seat
• They do not seek their party’s nomination for reelection to their current seat, meaning they neither file for reelection nor participate in their party’s nominating process (such as a primary, convention, or caucus)
Only members whose current term is scheduled to end with the 2026 regular election for the Senate may qualify for this market.
This market will not resolve until after the relevant final 2026 candidate filing deadline has passed in all states, which is expected to occur in late August 2026.
The resolution source for this market will be a consensus of credible reporting.
Resolver
0x2F5e3684c...**Seven Republican senators have announced they will not seek re-election in 2026, establishing the current confirmed total and driving the dominant 77.5% market probability for that exact outcome.** Ballotpedia and Wikipedia tracking as of July–August 2026 list the seven Republicans alongside four Democrats among the eleven total Senate incumbents stepping aside. Key announcements include Thom Tillis (NC, June 2025), Joni Ernst (IA, September 2025), Cynthia Lummis (WY, December 2025), Steve Daines (MT, March 2026), and Alan Armstrong (OK, March 2026), with Mitch McConnell (KY) also confirmed among the group. No additional Republican retirements have been announced in the past several weeks, and filing deadlines plus primary schedules have not yet prompted further departures. Traders price lower-probability alternatives such as 11 (8.8%) or 9 (4.2%) to reflect the modest chance of one or two more exits before the cycle closes, consistent with historical patterns of late-cycle decisions. The market reflects trader consensus on the final headcount of GOP senators choosing not to appear on the 2026 ballot.
Experimentelle KI-generierte Zusammenfassung mit Polymarket-Daten. Dies ist keine Handelsberatung und spielt keine Rolle bei der Auflösung dieses Marktes. · Aktualisiert


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