# Wisconsin Attorney General — Prediction Market Enforcement

**Type:** State enforcement action  
**Jurisdiction:** Wisconsin  
**Status:** Active litigation (federal preemption challenge pending)  
**Key Figure:** Josh Kaul (Wisconsin AG)

## Overview

Wisconsin Attorney General Josh Kaul filed 3 civil lawsuits on April 23-24, 2026 targeting 5 prediction market platforms (Coinbase, Crypto.com, Kalshi, Polymarket, Robinhood) that earn over $1 billion annually from sports contracts. The state alleges sports event contracts violate Wisconsin gambling law.

## Federal Response

CFTC filed federal lawsuit on April 28, 2026 in U.S. District Court for the Eastern District of Wisconsin, seeking to block state enforcement and declare Wisconsin's actions unconstitutional under the Supremacy Clause. Unlike Arizona (where criminal charges triggered immediate TRO), Wisconsin's civil enforcement action received declaratory/injunction relief without TRO motion.

## Tribal Gaming Context

Oneida Nation (Wisconsin tribal gaming entity) issued statement supporting Wisconsin's lawsuit, citing IGRA-protected exclusivity concerns, though not a formal co-plaintiff.

## Timeline

- **2026-04-23/24** — Wisconsin AG Josh Kaul files 3 civil lawsuits targeting 5 DCM-registered prediction market platforms for sports contracts
- **2026-04-28** — CFTC files federal lawsuit in E.D. Wisconsin seeking declaratory judgment and injunction (no TRO motion)
- **2026-04** — Oneida Nation issues statement supporting Wisconsin's enforcement action

## Significance

Wisconsin is the 5th state in CFTC's 26-day enforcement campaign (April 2-28, 2026). The absence of a TRO motion distinguishes this case from Arizona, revealing CFTC reserves its most aggressive immediate relief tool for criminal prosecution cases.