Prediction Markets Fueled False Pratt Win Odds — SkimNews

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- Spencer Pratt ran for Los Angeles mayor after the Palisades fire destroyed his home, turning his criticism of the city's response into a campaign rallying cry despite having no prior elected experience
- Kalshi and Polymarket hosted election contracts that drew over $47 million in trades for the 2026 LA mayoral race, making it the most heavily traded mayoral contest of the year
- A Kalshi trader spent $1.25 million on 'Yes' contracts for Pratt on May 20, causing the price to jump from 29 cents to 45 cents before reverting within nine seconds, according to Kalshi's case study
- ACDC analysis found that 23% of 167 high-value congressional markets on Kalshi and Polymarket International experienced price spikes of 30 cents or more, indicating vulnerability to short-term manipulation
- A study funded by the Brennan Center showed voters were 10 to 20 percentage points more likely to believe a candidate would win if prediction markets favored them, regardless of polling data
- Kalshi and Polymarket U.S. are regulated by the CFTC, collect 'know your customer' data, and have surveillance systems to detect manipulation, but the public cannot identify who makes specific trades
Why it matters: With 88% of congressional prediction markets movable by $1,000 or less and voters swayed by odds, bad actors can cheaply create false momentum for candidates—undermining election integrity even if markets self-correct, because perception can persist beyond price correction.
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