Iowa Republican Senate nominee in 2028?

Kalshi·Elections·ends Nov 7, 2029

As of 13:13 UTC on 21 Oct 2026, “Chuck Grassley” leads “Iowa Republican Senate nominee in 2028?” on Kalshi at 29%, followed by “Pat Grassley” at 12% and “Zach Nunn” at 10%, out of 7 outcomes. The event has $10 in Kalshi-reported 24-hour volume. pdata.world compares it with 20 related events on Kalshi, Manifold, Gemini and Polymarket.