This is not a column about whether Donald Trump is a quisling — a politician who serves the interests of foreign masters at his own country’s expense. Any reasonable doubts about that reality were put to rest by the events of the past few days, when he defended Russia while attacking our closest allies.

We don’t know Trump’s motivation. Is it blackmail? Bribery? Or just a generalized sympathy for autocrats and hatred for democracy? And we may never find out: If he shuts down the Mueller investigation and Republicans retain control of Congress, the cover-up may hold indefinitely. But his actions tell the story.

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