Washington State sues Kalshi

MaticHoleFiller · 2026-04-01T04:47:23+00:00

The startup prediction market company Kalshi is facing multiple legal lawsuits, with the Seattle Attorney General accusing it of operating as an illegal gambling institution, and actions have also been taken by Arizona and Nevada. Although Kalshi and its competitor Polymarket claim not to be gambling, their rapid expansion has attracted the attention of regulators.

MaticHoleFiller

2026-04-01 04:47:23

Abstract generation in progress

This startup company is facing an increasing number of legal lawsuits

On Friday, Washington State Attorney General Nick Brown filed a lawsuit against prediction market startup Kalshi, accusing it of being an illegal gambling operation—its latest round of legal action.

A few weeks ago, Arizona also filed a lawsuit against Kalshi, and Nevada has taken legal action against the company as well. Its main competitor, Polymarket, is also dealing with a range of legal disputes.

Kalshi and Polymarket have both said that their business does not fall under gambling. Even so, their rapid expansion in the mainstream U.S. market has made them a key target of regulators.

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