The democratic nations of the world are in a global struggle against authoritarianism. That struggle has international fronts — starting with the need to confront, repel and weaken Vladimir Putin.

But that struggle also has domestic fronts — the need to defeat the mini-Putins now found across the Western democracies. These are the demagogues who lie with Putinesque brazenness, who shred democratic institutions with Putinesque bravado, who strut the world’s stage with Putin’s amoral schoolboy machismo while pretending to represent all that is traditional and holy.

In the United States that, of course, is Donald Trump. This moment of heightened danger and crisis makes it even clearer that the No. 1 domestic priority for all Americans who care about democracy is to make sure Trump never sees the inside of the Oval Office ever again. As democracy is threatened from abroad it can’t also be cannibalized from within.