How many Republican House Incumbents will not win their Primary? is a active prediction market event on Polymarket with 6 markets, $40.0K total volume, and $1.9K in liquidity. Key markets: Will Republican House incumbents not win in fewer than three nominating elections in the 2026 cycle?; Will Republican House incumbents not win in between seven and nine nominating elections in the 2026 cycle?; Will Republican House incumbents not win in between ten and twelve nominating elections in the 2026 cycle?.