How American steelmakers have survived — without Trump’s help

President Trump’s new proposal to erect a wall — this one a tariff-fueled steel and aluminum curtain — masks an inconvenient truth: The U.S. steel industry has been holding its own, thanks to advances in productivity and the spread of cheap natural gas and gas-fired electricity.

Trump has called his tariffs a way to halt the slide in U.S. jobs. Yet the slide in U.S. steelworker jobs has in large part been the result of increases in efficiency.

Steven Mufson and Andrew Van Dam