Vox's science reporter Brian Resnick joins Dara and Sarah to talk about psychiatry's Goldwater Rule, which has never met a test like Donald Trump. References and further reading: Brian's piece on why Trump's fitness for office is not a medical question Brian's explainer on the Goldwater Rule Sharon Begley's article Trump's mental health mentioned by Sarah Sarah's piece on fax machines Dara's piece on why the palace intrigue stuff matters to Trump

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