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Prediction markets feel the heat 🥵

Prediction markets feel the heat 🥵

Kalshi has suspended political candidates for trading on their own elections, while France's weather agency called the cops after suspicious Polymarket bets on the temperature.

Stephen Graves
April 23, 2026

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📝 What you need to know

Prediction markets continue to grapple with insider trading and suspicious long-shot bets on their platforms in recent days. Kalshi has disclosed enforcement actions and fines against political candidates who bet on their own elections, while New York and Illinois have banned government employees from using insider information to make trades on prediction markets.

And in France, the national weather agency has filed a police complaint over “interference” with its sensors after a series of long-shot bets on the temperature in Paris saw Polymarket traders walk off with $35,000.

It seems like punters are coming up with ever more ingenious ways to skew the markets in their favor. Whatever next? Place your bets…

French Weather Agency Alerts Police to Sensor ‘Interference’ After $35K Polymarket Payouts

Long-shot bets on a market tied to the daily maximum temperature in Paris have raised eyebrows—and triggered a police complaint.

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📰 In the News

Kalshi Fines Meme Coin Candidate Mark Moran, Others for Betting on Their Own Elections

Kalshi unveiled enforcement actions against three political candidates who bet on their own elections, including one pro-crypto hopeful.

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🕵🏻‍♀️ Editor’s Picks

New York, Illinois Ban Government Employees From Insider Trading on Prediction Markets

The states banned government employees from trading on insider information—a growing concern as prediction markets related to politics surge in popularity.

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AngelList's new USVC fund allows non-accredited retail investors to gain exposure to major private firms like Anthropic and OpenAI.

Anthropic Using ‘Fear-Based Marketing’ to Promote Claude Mythos: Sam Altman

The OpenAI chief said warnings about rival Anthropic’s AI model may be exaggerated, as its cybersecurity capabilities draw scrutiny.

📚 Watch, Listen & Learn

📹️ WATCH: Bitcoin Clears $79K Before Reversing, U.S. Government Running a BTC Node, MegaETH TGE Expected Soon

🎧 LISTEN: The Decrypt News roundup with TylerD - April 23rd

Bitcoin cleared $79,000 for the first time since February before reversing. Justin Sun is suing Trump’s World Liberty Financial. And Andre Cronje is trying to solve DeFi’s biggest problem.

🎓️ LEARN: What Is World Liberty Financial? The Trump Family DeFi Project Explained

The biggest crypto venture linked to U.S. President Donald Trump is a DeFi project promising to help the unbanked. But how does it work?

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