U.S. President Donald Trump has targeted top economic rival China with a cascade of tariff orders on billions of dollars of imported goods aimed at narrowing a wide trade deficit, bringing back lost manufacturing and crippling the fentanyl trade.

Tariffs on Chinese imports are currently set at 30%, which, to be clear, is high. But Trump has threatened tariffs of up to 245%. Retailers who do import from China know 90 days is nothing when you’re ordering goods from overseas.

When President Trump rocked the economy with an unprecedented attack on global trade in April, the plan was dismissed as swaggering, capricious and unsustainable.