After Nixon’s “I am not a crook” tax scandal, the IRS mandated that the president’s tax returns be audited yearly.
Every president since Nixon (except Trump) publicly released theirs.
With the new DOJ settlement ending his audits, Trump is essentially announcing “I am a crook.”
Any DOJ settlement that gives the President a dollar -- or a direct material benefit -- is a flagrant violation of the Presidential Emoluments Clause:
"The President shall not receive ... any other Emolument from the United States, or any of [the states]." Art II, S.1, cl. 7.