An FDNY psychologist who says Donald Trump once crudely insulted her looks has diagnosed him as mentally unfit to be president. Suzanne Lachmann claims her brief encounter with Trump — and her work treating FDNY firefighters after 9/11 — qualifies her to make the pronouncement. Lachmann recently tweeted that she “met Trump personally,” and that her work with the Bravest to “determine who must be taken off line due to mental duress,” justifies her conclusion that the commander-in-chief must go.