President Trump is so prone to rhetorical excess that he sometimes hurts his own case even when he’s right. A case in point is his shellacking of Germany Wednesday for supporting a new Russian gas pipeline.

“Well, I have to say, I think it’s very sad when Germany makes a massive oil and gas deal with Russia, where you’re supposed to be guarding against Russia, and Germany goes out and pays billions and billions of dollars a year to Russia,” Mr. Trump said during a breakfast with NATO Secretary General Jens Stoltenberg.

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