The disclosure expands the extent of known rogue activity and raises further questions about the extent to which AI makers are maintaining control over their newest models.

Under Attorney General Pam Bondi, the DOJ abandoned a record number of cases — including hundreds of investigations into terrorism, white-collar crime and drugs — in just the first six months of Presi...

Only some of the bets will allow margin trading, showing where the prediction-markets platform thinks its future lies.