Massie vs. Gallrein: Prediction Markets Bet $5.5M on the Most Expensive US House Primary Ever

Prediction market traders have placed more than $5.5 million in combined volume on the Kentucky 4th Congressional District Republican primary, with challenger Ed Gallrein holding a narrow edge over seven-term incumbent Rep. Thomas Massie ahead of Tuesdays vote. Gallrein Pulls Ahead of Massie on Polymarket and Kalshi in Kentucky House Race On Polymarket, the KY-04 []