politico.com:

History provides endless counterfactuals to any given notion, but rage is often a sign of incompetence. What made Washington, Lincoln and FDR so effective was the application of anger’s inverse rule: The tougher things got, the calmer they became. “When his position permits a man to do all that anger prompts,” Seneca says, “general destruction is let loose.” Which is simply to say that to admire a leader’s anger, a quality so many venerate in President Trump, is to flirt with one of history’s primary lessons: that mad men often become madmen.

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