Not since Charles Lindbergh, Henry Ford, Joseph Kennedy and Father Coughlin extolled the virtues of Adolph Hitler in the 1930s and ’40s have so many influential Americans sided with a major foreign adversary, as is happening today with Russia’s war in Ukraine. Television commentator Tucker Carlson has often demeaned the U.S. and NATO support for Ukraine, calling it a scam backed by a “propaganda campaign designed to convince Americans to take sides in this conflict, a conflict that has strictly speaking nothing to do with them.” It reminds one of Neville Chamberlain calling Nazi Germany’s pending invasion of Czechoslovakia in...