President Donald Trump spent part of his weekend in Scotland reviving his old grievances against wind power, even claiming at one point that it was “killing” Americans.

During a meeting with European Commission President Ursula von der Leyen, Trump abruptly detoured from immigration to wind turbines.

“And the other thing I say to Europe: We will not allow a windmill to be built in the United States,” Trump said. “They’re killing us.”

He added:

“They’re killing the beauty of our scenery, our valleys, our beautiful plains ― and I’m not talking about airplanes. I’m talking about beautiful plains, beautiful areas in the United States, and you look up and you see windmills all over the place. It’s a horrible thing. It’s the most expensive form of energy. It’s no good. They’re made in China, almost all of them.”