Election betting favoring Donald Trump surged after a federal judge ruled that offering election trading to Americans does not violate state gambling laws. Market trends reveal an influx of wagers worth hundreds of millions, driven by platforms like Kalshi, Interactive Brokers, and Robinhood. Federal concerns about election betting's impact, market manipulation, and regulatory oversight remain central. Researchers report signs of wash trading on Polymarket, where repeated trades by the same individuals create a false impression of higher activity.
