Warren could gain Senate Banking power to scrutinize prediction markets
Senator Elizabeth Warren could reportedly gain influence over the Senate Banking Committee, according to reports from November 6 and November 8. The position would give her subpoena powers to investigate prediction markets and cryptocurrency firms. Warren may use those powers to examine alleged insider trading involving prediction markets and consumer-protection issues. The focus on crypto and prediction markets follows Warren's March accusation that President Trump reduced enforcement to benefit firms linked to his family.
Warren gaining the gavel would turn the Banking Committee into an active investigative threat, not just a messaging platform. Subpoena power lets her compel documents and testimony from Kalshi and Polymarket US that parallel House and Senate tracks have already requested. The platforms are already straining to produce surveillance data that satisfies senators before the midterms close. A Banking Committee chairman with personal investigative staff can dig deeper and faster than individual senators writing letters.
Kalshi and Polymarket US must now budget for a fourth front: congressional subpoena defense on top of CFTC swap rules, state criminal charges in Utah, and preemption fights in Ohio, Tennessee, Louisiana, and Arkansas. Warren's March attacks on Trump-linked crypto firms signal she will pair policy hearings with targeted investigations. The first subpoena to a prediction market platform would force immediate public disclosure of trading surveillance that operators have kept internal.