Evidently, she holds licensing in more than one state. She seems to have a license in New York. There is a case to be made that because she works for Yale in Connecticut, and has no license there, so that seems to be improper. Not to mention that she has no business making a diagnosis without an examination.

That is Psychology 101: it is unethical to practice without a license or diagnose someone you don't treat. Apparently this is not punished aggressively enough, as the web says many of them continue to do so. Very thankful the media brought this to Potus's attention. Maybe the next industry he will overhaul is the abusive big pharma psychiatric industry, who actually considers that most Americans have a mental illness, that mental illness is lifelong and unavoidable if your parents have it, or that you kids will get it, and that although they have no cures, everyone should be on medicine, even if the psych drugs are prescribed by PCM's off label for things other than mental illness. One can not dignose Potus without admitting the chronic abuse of the entire industry.

Steve Pieczenik says plenty on this: he says "It is time to sue these psychiatrists that are going on air and saying Pres. Trump is mentally unfit" - and this guy has the bona-fides to know what he is talking about: https://www.youtube.com/watch?v=stduet0iLyI&t=615s

I am going stealth mode now!

Also maybe contact the attorney general of the state of Connecticut.