The President has more access to legal advice than anyone else in the country. Aside from his personal lawyer, the White House has his personal lawyer, he has the White House counsel, plus he has the services of the Office of Legal Counsel. He can also send questions to the legal counsel of any part of the executive branch, including each branch of the military and each intelligence service. The President has literally dozens of experts at his finger-tips, each of which can tell him what disclosures are legal and what are not illegal.
But instead, President Trump gets his legal advice from "Fox and Friends".
But instead, President Trump gets his legal advice from "Fox and Friends".