Department of Justice News & Prediction Market Coverage
Track the latest Department of Justice news across prediction markets. Prediction News is following 19 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
Arkansas attorney general sues Kalshi over Razorbacks event contracts
LegalUtah summons Kalshi to court Dec. 4 on felony gambling charges
LegalUtah court summons Kalshi founders as New York regulators pursue penalties
LegalCFTC proposes twin rules classifying event contracts as swaps while carving out casino gambling
LegalCFTC and DOJ sue Utah to block state enforcement against Kalshi
LegalUtah AG calls Kalshi a 'back-alley gambling den' and seeks up to $61.2 million
TradingNewsNation highlights Kalshi markets favoring Democrats in Alaska and Texas races
LegalCFTC Iran trade probe fuels agency insider-trading enforcement doubts
LegalCFTC flagged insider trading in prediction markets as enforcement priority
LegalDOJ argues binary event contracts are swaps in criminal filing
LegalCFTC enforcement chief calls event contracts swaps as DOJ joins insider-trading push
TradingKalshi and Robinhood split on legal paths to save sports event contracts
LegalCFTC probed Polymarket trades on Biden pardons, Iran and Google in three hidden investigations
LegalDOJ and CFTC charge Google engineer with Polymarket insider trading
LegalKalshi issues first lifetime ban to George Santos over State of the Union bets
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
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.