Lawmakers have passed a resolution that takes immediate effect. The proposal was introduced by Republican Bernie Moreno to prevent insider trading. Kalshi and Polymarket supported the Senate's actions. In April, Kalshi banned three politicians from betting on the platform and fined them. Polymarket has begun using Chainalysis' oracle to combat insider trading, fraud, and market manipulation. This comes as the company raises $400 million at a valuation of $15 billion. In April, Polymarket assisted US authorities in capturing Gannon Van Dyke, who had used insider information regarding the capture of Nicolás Maduro.