Resolution criteria on PolyGram: This market will resolve according to the candidate Bernie Sanders announces that he will vote for or endorses for the listed election. If Bernie Sanders does not announce an endorsement by the day before the scheduled election at 11:59 PM ET, this market will resolve to "No". The resolution source for this market will be official information from Bernie Sanders or one of his representatives, or a consensus of credible reporting of Bernie Sanders' endorsement.
PolyGram is an on-chain prediction market where you trade YES or NO outcome shares with real USDC on Polygon. For this market, buy YES if you believe the event will happen, or NO if you think it won't. Your maximum loss is your stake — winning shares pay $1.00 each at resolution. Unlike sportsbooks, there is no house edge: prices are set by supply and demand from other traders and reflect the crowd's real-time probability.
Market outcomes
| Kshama Sawant - WA-09 | 32% YES | 68% NO |
| Antonio Delgado - NY-Gov | 7% YES | 93% NO |
| Alan Grayson - FL-Sen | 4% YES | 96% NO |
| James Talarico - TX-Sen | 87% YES | 14% NO |
| Dan Osborn - NE-Sen | 56% YES | 44% NO |
| Omar Fateh - Minneapolis Mayor | 0% YES | 100% NO |
| Zach Wahls - IA-Sen | 22% YES | 78% NO |
Bernie Sanders' decision whether to publicly endorse a candidate in the 2026 election cycle remains uncertain, with the current order book on Polymarket pricing a 33% probability that he will announce support before the settlement deadline in November 2026. The market requires a formal endorsement announcement from Sanders himself or an official representative, with the resolution window closing the day before the scheduled election.
Sanders has a mixed recent record on endorsements. In 2020, he endorsed Joe Biden after suspending his own presidential campaign, though the timing and enthusiasm were debated. In 2022 midterms, he campaigned actively for Democratic candidates aligned with his agenda, though these efforts differed from formal endorsements of specific races. His endorsement patterns depend heavily on whether he perceives a candidate as sufficiently aligned with his progressive platform on healthcare, climate, and economic policy—criteria that have shifted across election cycles.
Key catalysts for traders include Sanders' health status and continued political activity, any major candidate announcements in the 2026 cycle, and Sanders' own positioning within the Democratic Party. His age (he will be 85 by November 2026) introduces uncertainty around his public engagement levels. The current 33% probability reflects meaningful doubt about whether Sanders will view any candidate as worthy of endorsement or whether he will remain strategically silent. Watch for statements from Sanders' office regarding his involvement in the coming election cycle, typically emerging in the months preceding major campaigns.
Resolution is handled by the UMA optimistic oracle on Polygon. A proposer submits the outcome, a two-hour dispute window opens, and if no one stakes a counter-claim the payout is final. Contested outcomes escalate to UMA token-holder voting. Payouts clear in USDC to the winning side.
The mechanics for trading "Who will Bernie endorse?" are the same as any other PolyGram event contract. Each YES share resolves to $1 if the event happens, or $0 if it doesn't. The current price between 0¢ and 100¢ is the market's probability estimate, set live by the order book.
$162K in lifetime turnover and $51K of resting liquidity puts this market in the top 30% by volume for bernie sanders contracts on PolyGram. Order-book depth is strong — order books support five-figure trades with single-cent slippage.
Last 24 hours alone saw $1K in turnover, consistent with the market's lifetime daily-average pace.
The market has been open for 8 months — long enough that the order book is mature and price is well-anchored to fundamentals.
Higher-volume markets tend to have tighter spreads and faster price discovery — meaning the displayed YES/NO percentages are more likely to reflect the true crowd-implied probability rather than a single trader's directional view.
Resolution is handled by the UMA optimistic oracle on Polygon. A proposer submits the outcome, a 2-hour dispute window opens, and if uncontested the payout is final. Contested outcomes escalate to UMA token holders.
This prediction market is scheduled to close on 4 November 2026. After the resolving event occurs, settlement typically clears within 24 hours once the UMA optimistic oracle confirms the outcome. All payouts are in USDC on the Polygon network.
To trade on this prediction market, create a free PolyGram account at polygram.ink, deposit USDC via Polygon, and place a YES or NO order on the outcome you believe in. You can learn more on our how-it-works page. Your maximum loss is limited to your stake — there is no leverage or margin.
When the outcome is determined, winning YES shares pay out $1.00 each in USDC, while losing shares pay $0. Settlement is handled by the UMA optimistic oracle on Polygon — a proposer submits the result, a two-hour dispute window opens, and if uncontested, payouts are distributed automatically. You can withdraw your winnings to any Polygon wallet.
Prediction-market positions can lose 100% of staked capital. Outcomes are uncertain by definition — historical accuracy of crowd-implied probabilities is high in aggregate but not for any single market. PolyGram does not provide investment advice. Trade only with capital you can afford to lose.
Regulatory status varies by jurisdiction. Germany, the United States, and most EU countries treat Polymarket-style event contracts under one of three frameworks: financial derivative, gambling product, or unregulated novel asset. Consult local counsel before trading.
Explore more prediction market odds and trading opportunities on PolyGram: