By now you’ve heard that Donald Trump’s campaign aides had a physical confrontation with an official at Arlington National Cemetery who tried to prevent them from filming in a restricted area, which apparently violated the law. This scandal worsened Thursday when the Army sharply rebuked his campaign. Democratic Senators are getting involved, which could bring a fuller accounting. We talked to political scientist Jonathan Bernstein—author of a good new piece about this saga—who details how Team Trump’s actions are now signaling a larger deterioration of the rule of law and democracy.

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