Kalshi's KPOW index prices Democrats at 90% for House control
Kalshi's American Power Index (KPOW) prices Democrats at 90% odds to win House control and +4.1D for Senate control, according to an October 20 post from the platform on X. The index aggregates prediction market pricing across multiple Kalshi political markets into a single composite measure of party power in Congress. A separate October 19 survey of Polymarket and Kalshi pricing noted both platforms favor Democrats in both chambers, but with a much wider margin in the House.
The 90% House price shows prediction markets pricing a near-certain Democratic chamber hold while the Senate remains competitive at 63%. That divergence matters for traders who use Kalshi's composite index as a hedging benchmark: a lopsided call in one chamber and a tight race in the other breaks the usual correlation strategies that treat Congress as a single bet.
Kalshi's CBS News partnership means this pricing reaches mainstream audiences who may read the 90% as polling certainty rather than market-implied probability, drawing retail flow into a market with no reversal hedge if the call proves wrong. The gap also leaves room for sharp repricing if late-breaking events move the Senate, since the KPOW index bundles both chambers into one quoted figure. Traders watching the composite must now disaggregate the signal themselves or accept embedded House skew.
Joins a recent series of Kalshi political pricing benchmarks that now include blue wave and blue tsunami odds and Senate debate repricing as the platform's political book becomes a real-time reference for mainstream election coverage.