These aren't the type of charges you wriggle out of.
Hence why his lawyers bolted.
I mean, Trump just as easily could have had a tantrum and fired them after getting indicted officially. Or its not even particularly uncommon for legal teams to change up once a formal indictment comes after the early stages of opposing that action. Both of which were theories posited by NPR commentators over the weekend trying to tell people to be careful about reading their departures as a smoking gun.