Money laundering through an associate and close friend, and foreign exchange evasion are the two main ones currently sitting on the Supreme Court.

Well, the most recent would be a conspiracy to fuck with public transit on election day, perhaps they could start with that, determine the degree of his culpability and involvement, and then keep going in reverse chronological order. Then they could go after corruption, the usual sort of stuff.

His dad's doing time for a coup and an attempted assassination, and his brother's been convicted of coercing the judiciary, by getting Trump to punish Brazil for his dad's conviction. It's a perfectly normal sort of family, this stuff could have happened to anyone.