How many Republican senators will lose reelection in 2026?

Kalshi·Elections·ends Jan 7, 2027

As of 01:27 UTC on 23 Oct 2026, “5 or more” leads “How many Republican senators will lose reelection in 2026?” on Kalshi at 58% (+2pp in 24h), followed by “Exactly 4” at 24% and “Exactly 3” at 8%, out of 6 outcomes. The event has $92 in Kalshi-reported 24-hour volume. pdata.world compares it with 21 related events on Kalshi, Manifold, Polymarket and Opinion.