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  "path": "/story/385951/kalshi-polymarket-rush-to-ban-insider-trading.html",
  "publishedAt": "2026-03-23T19:14:00.000Z",
  "site": "https://www.newser.com",
  "textContent": "Kalshi and Polymarket, the two biggest prediction market platforms, rushed to institute new industry guardrails on Monday after two key senators announced legislation that could severely curtail the industry's prospects. Kalshi said it would ban political candidates from trading on their own campaigns, and it would preemptively block anyone involved...",
  "title": "Kalshi, Polymarket Rush to Ban Insider Trading"
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