For a tax discrepancy usually handled administratively- calculate the tax error- pay it and a fine.
He should DEMAND that two separate IRS groups audit his return and provide the results to the court- I guarantee they come up with 2 different figures.
Different guy. You may be thinking of Weisserman who had perks that didn’t get declared as income. This guy is accused of violating the “Hatch Act” by promoting some interest of the UAE. The charges are ridiculous.