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Story summary
- Polymarket appointed Warren Jenson, 69, as its first global chief financial officer.
- Jenson previously led finance at Amazon, Electronic Arts, Delta Air Lines, and Nielsen.
- Polymarket is raising $1 billion from 1789 Capital, valuing the firm at $21 billion.
- Donald Trump Jr., a partner at 1789, advises Polymarket and rival Kalshi.
- The firm faces a broad federal investigation by the Commodity Futures Trading Commission.
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