One of Trump's former attorneys, Jenna Ellis, who was changed in Georgia and pled guilty, is now agreeing to cooperate in the Arizona case against fake electors.

Ex-Trump attorney Jenna Ellis agrees to cooperate in Arizona 'fake elector' case
The state is dropping the charges against Ellis in exchange for her cooperation.

Trump wasn't charged in this case, but it is more of the body of evidence against his co-conspirators that will also work against him (as life gets worse for those folks more of them are liable to testify against Trump).