President Trump’s trade policies don’t match up with basic economic principles.

Tariffs make superior offers less desirable for buyers by making them more costly.

You simply can’t make people better off by removing options from them.

The doctrine of nationalism, a dangerous brew in which Americans have long indulged.

Two cases of government obstructions at the border.

The only way to win a trade war is not to fight one.

Government interference neglects the nuance of trade.

Whatever his latest rhetoric, Trump has helped show that—just as economists feared—the idiocy of trade protectionism is contagious.

The nation-based “balance of international payments” accounting system is misleading and nonsensical.

The Democrats could not have asked for a better ally than Donald Trump when it comes to trade protectionism.