Alleged prediction market violations start stacking up – POLITICO

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“I traded $100 on myself, knowing this would happen (also knowing that I wouldn’t be vying for the democratic nomination) and the attention it would create to highlight how this company is destroying young men and as Senator I will go after Kalshi and impose significant penalties on them – 25% – a vice tax – to pay down our national debt,” he said.

Elisabeth Diana, Kalshi’s head of communications, said that bringing the bets from Klein, Enriquez and Moran to light is an example of the company’s efforts to stay above board in its regulation efforts.

“As a federally regulated exchange, we prohibit insider trading and market manipulation and have meaningful surveillance and enforcement programs in place,” she said.

A man on a bicycle rides on the flooded banks of the Seine next to the Eiffel Tower in Paris on Feb. 25, 2026. | Thomas Padilla/AP

Playing with Mother Nature

Several Polymarket traders made thousands of dollars in profits for accurately predicting sudden, anomalous spikes in the temperature at Paris’ Charles De Gaulle airport April 15, according to the Wall Street Journal.

Météo-France, the country’s weather service, is now investigating the incident, which could be tied to tampering.

Jimmy Donaldson, the popular YouTube video maker who goes by MrBeast, is seen at an MLS soccer match between Inter Miami and CF Montreal on March 10, 2024, in Fort Lauderdale, Florida. | Rebecca Blackwell/AP

MrBeast’s editor

In February, Kalshi reported Artem Kaptur, an editor for MrBeast, one of the world’s biggest influencers and most popular YouTube creators, to federal authorities for allegedly trading “on material, non-public information he obtained because of his employment” regarding the celebrity’s YouTube videos.

Kalshi suspended Kaptur from its platform for two years and imposed a financial penalty of more than $20,000. He was fired in March.

“Beast Industries has no tolerance for this behavior, whether by contestants or our own employees,” MrBeast’s company wrote at the time.