Home › DW       18.07.2026

Trump's teleprompter operator makes bank on insider trading | DW News

A longtime Trump teleprompter operator has been suspended amid allegations he used advance knowledge of presidential speeches to place bets on prediction markets. We speak with national security researcher Alex Goldenberg about the case and why it could raise broader concerns beyond ethics.

00:00 — Karoline Leavitt confirms teleprompter operator on leave 00:34 — What Kalshi's "Mentions" market allowed users to bet on 01:21 — How the operator allegedly won $100,000 across more than a dozen speeches 02:08 — Alex Goldenberg on prediction markets as a national security window 03:10 — The Maduro raid: US soldier bets $34,000, wins nearly $500,000 04:08 — Why insider trading laws do not automatically cover prediction market abuse 05:52 — Kalshi's surveillance flagged trades — but betting ran for three months 06:57 — Polymarket, offshore platforms, and the limits of enforcement 07:33 — The deeper danger: influencing events to trigger payouts 08:33 — Paris temperature manipulation case: a hair dryer and $21,000 09:21 — Prediction markets as a potential tool of information warfare 10:38 — Should prediction markets be banned, and what would replace them?

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