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The Guardian - US
The Guardian - US
World
Cecilia Nowell

Kalshi and Polymarket prohibit affiliates from spreading election misinformation

A large digital billboard displays NYC mayoral election odds showing Mamdani at 93% and Cuomo at 7% above a busy street
A Kalshi billboard displaying New York City mayoral election odds in New York, on 27 October 2025. Photograph: Bloomberg/Getty Images

The popular online prediction markets Kalshi and Polymarket will prohibit paid creators and affiliates from denying election results, NPR reports, as online creators spread misinformation about California’s election.

In a social media post, Bobby Allyn, NPR technology reporter, reports: “Kalshi now says it prohibits paid creators from calling into question the integrity or accuracy of an election, legal ruling or official determination in connection with an election.

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