Pennsylvania’s Lehigh Valley was once synonymous with America’s industrial might.

The region was known for its booming manufacturing economy anchored by companies like Mack Trucks and Bethlehem Steel, the latter of which employed over 30,000 workers at its peak in the 1950s.

But manufacturing began to struggle in the 1970s and collapsed by the turn of the century. Bethlehem Steel went bankrupt in 2001 (the site now houses a casino). All of this made the Lehigh Valley into a symbol of the ills of de-industrialization. There’s even a Billy Joel song about it.

President Donald Trump has said his ongoing trade war is meant in large part to bring manufacturing jobs back to communities like this. But, in the Lehigh Valley, it’s having the opposite effect: Last month, Mack Trucks announced it would be

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