Department of Justice News & Prediction Market Coverage
Track the latest Department of Justice news across prediction markets. Prediction News is following 17 active Department of Justice stories across regulation, legal action, market moves, and platform developments, each clustered from original reporting and summarized for operators, traders, and regulators.
Latest News
Kalshi issues first lifetime ban to George Santos over State of the Union bets
LegalDOJ and CFTC charge Google engineer with Polymarket insider trading
LegalNew York Times union sinks Kalshi partnership with The Athletic
LegalUS servicemember under investigation for $1M+ Polymarket bets on Iran, Venezuela ops
LegalPolymarket referred dozens of military insider trading accounts to DOJ
LegalNovig sues Wisconsin AG to block sports contract crackdown
LegalDOJ clears Rep. Luna of prediction market insider-trading probe
LegalSDNY judge denies Kalshi preliminary injunction in New York preemption fight
LegalFederal judge blocks Minnesota's first-in-the-nation prediction market ban
LegalDOJ probing former Rep. Santos for alleged insider trading on Kalshi
LegalCFTC sues Kentucky to block state crackdown on prediction markets
LegalSenators demand CFTC investigate Polymarket over fake bets report
LegalNew Mexico AG Torrez sues Kalshi over alleged illegal sports betting
LegalCFTC sues New Mexico to block state gaming restrictions on prediction markets
LegalDOJ and CFTC charge Google engineer in second coordinated prediction markets insider trading case
LegalDOJ and CFTC coordinate insider-trading enforcement against prediction markets
LegalDOJ and CFTC charge Google engineer with $1.2M Polymarket insider trades using search data
Frequently Asked Questions
Has the DOJ charged anyone for insider trading on Polymarket?
Yes, on May 27, 2026 the DOJ and CFTC filed parallel criminal and civil charges against Google engineer Michele Spagnuolo for allegedly earning $1.2 million using non-public search data.
What is the DOJ's role in prediction market enforcement?
The DOJ coordinates with the CFTC to apply traditional insider trading and fraud laws, including the misappropriation theory, to event-contract trading on platforms like Polymarket and Kalshi.
Has the DOJ investigated prediction market platforms themselves?
Coverage focuses on actions against individual traders rather than platforms, though platforms face pressure to improve surveillance to avoid co-defendant exposure in future cases.
Are there other DOJ cases involving prediction markets besides the Google engineer?
Yes, the DOJ and CFTC have pursued additional coordinated actions, including against a U.S. soldier using classified information and probes into oil-futures trades ahead of news events.
Does the DOJ work with the CFTC on prediction market cases?
Yes, the agencies have conducted multiple parallel criminal-civil enforcement actions in 2026 targeting manipulation and insider trading on event-contract platforms.