Trader consensus on Polymarket heavily favors 24-27 Democratic House incumbents not seeking re-election in 2026 (39.5% implied probability), anchored by roughly two dozen recent retirement announcements following the 2024 election losses. This range aligns with historical midterm patterns for the out-of-power party, where retirements averaged 22-28 in recent cycles like 2018 and 2022, driven by tough districts, fundraising challenges, and member age demographics. Recent catalysts include high-profile exits from vulnerable seats in swing areas, boosting this bin over lower tallies like 20-23 (9.8%). Additional announcements are anticipated through Q1 2025, potentially elevating odds for 28-31 (16.5%), amid stable national headwinds for Democrats.
Experimental AI-generated summary referencing Polymarket data · Updated28–31 20%
40+ 11.1%
36–39 11.0%
20–23 10.4%
$10,496 Vol.
$10,496 Vol.
<20
2%
20–23
9%
24–27
34%
28–31
16%
32–35
6%
36–39
6%
40+
7%
28–31 20%
40+ 11.1%
36–39 11.0%
20–23 10.4%
$10,496 Vol.
$10,496 Vol.
<20
2%
20–23
9%
24–27
34%
28–31
16%
32–35
6%
36–39
6%
40+
7%
This market will resolve according to the total number of Democratic members of the U.S. House of Representatives 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 House 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.
Market Opened: Dec 12, 2025, 6:36 PM ET
Resolver
0x2F5e3684c...Resolver
0x2F5e3684c...Trader consensus on Polymarket heavily favors 24-27 Democratic House incumbents not seeking re-election in 2026 (39.5% implied probability), anchored by roughly two dozen recent retirement announcements following the 2024 election losses. This range aligns with historical midterm patterns for the out-of-power party, where retirements averaged 22-28 in recent cycles like 2018 and 2022, driven by tough districts, fundraising challenges, and member age demographics. Recent catalysts include high-profile exits from vulnerable seats in swing areas, boosting this bin over lower tallies like 20-23 (9.8%). Additional announcements are anticipated through Q1 2025, potentially elevating odds for 28-31 (16.5%), amid stable national headwinds for Democrats.
Experimental AI-generated summary referencing Polymarket data · Updated
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