How did "Will Kamala Harris endorse Mamdani?" resolve?

It resolved Yes around November 3, 2025.

What did the market predict?

Polymarket priced the winning outcome at 10.5% one day before close, 9.0% one week before and 9.5% one month before.

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Resolved market scorecard

Will Kamala Harris endorse Mamdani?: result and scorecard

Name: Will Kamala Harris endorse Mamdani? prediction market prices
Creator: BetG8

Resolved Yes. One day before close Polymarket priced that outcome at 10.5%; a week before, 9.0%. $44K traded in total.

Updated 2026-11-06 03:02 UTC · Source: Polymarket · 18+ · Market prices, not predictions or advice

Result

Yes

resolved September 23, 2025

Price 1 day before

10.5%

Market leaned the wrong way

Price 7 days before

9.0%

30 days before: 9.5%

Volume

$44K

1 outcome

kamala harris Politics NYC Mayor Mamdani Nov 4 Elections

Final prices by outcome

Outcome	Result	Volume
Yes	WON	$44K
No	LOST	$44K

Price history to resolution

Yes

Scorecard

A market that prices the eventual outcome at 11% the day before is getting it wrong in the simplest sense, but a single market says little about calibration. Across many markets, outcomes priced at 70% should happen about 70% of the time. See the monthly scorecard for the aggregate record.

Resolution rules

This market will resolve to "Yes" if Kamala Harris announces that she will vote for Zohran Mamdani or endorses Mamdani for the 2025 NYC Mayor election between June 26, and November 3, 2025, 11:59 PM ET. Otherwise this market will resolve to "No". If Kamala Harris announces that she will vote for another candidate or endorses another candidate for NYC Mayor, this market will immediately resolve to "No". The resolution source for this market will be official information from Kamala Harris or one of her representatives, or a consensus of credible reporting of Kamala Harris's endorsement.

Frequently asked questions

How did "Will Kamala Harris endorse Mamdani?" resolve?: It resolved Yes around November 3, 2025.
What did the market predict?: Polymarket priced the winning outcome at 10.5% one day before close, 9.0% one week before and 9.5% one month before.
How much was traded?: $44K across 1 outcome.

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Data: Polymarket Gamma and CLOB APIs, fetched by BetG8 at the time shown above. Venues may restrict access by location. 18+ only.