Kalshi ordered to halt prediction markets in Washington

The significance lies less in Washington's specific order than in the compliance architecture it demands: geofencing by one date, then a multi-source verification system shortly after. That two-step structure suggests regulators are testing whether prediction markets can reliably exclude users by jurisdiction at all — a technical bar with implications well beyond Kalshi, since the same question applies to any platform offering event contracts across state lines. The open question is whether other state regulators adopt similar sequencing, and whether multi-source verification becomes the de facto standard platforms must build for.