Prediction market Kalshi is investigating suspicious trades betting that Trump would select conservative commentator Katie Zacharia as the new White House press secretary. A platform spokesperson confirmed the probe but declined to provide further details on the specific activity under review. The White House previously announced that Zacharia would succeed Karoline Leavitt in the role. This investigation follows a July incident where a White House teleprompter operator was fired for allegedly using inside information to bet on Trump's speech content on the same platform.