导读：美国37位精神科医生发表公开信，声称特朗普总统具有“grave emotional instability”。特朗普不是第一个被怀疑精神有问题的领导人，心理学家分析特朗普的性格。
It seems an incredible question to ask of a man who ran a multi-billion-dollar business and vanquished seasoned political opponents on his way to highest office in the US. But experts are debating the mental health of the US president.
The discussion of Donald Trump's mental health has come to the fore following an open letter from dozens of professionals who say his "grave emotional instability" make him unfit for the presidency.
In a letter to the New York Times, 37 mental health professionals warned that the "grave emotional instability" indicated in Mr Trump's speech and actions made him "incapable of serving safely as president".
They said experts had remained silent because of the Goldwater rule, but that it was time to speak out. "This silence has resulted in a failure to lend our expertise to worried journalists and members of Congress at this critical time. We fear that too much is at stake to be silent any longer."
The call seems to break a long-standing rule among experts of not diagnosing public people, and has been condemned by a leading psychiatrist, who described the "psychiatric name-calling" as an insult to the mentally ill.