Three weeks after US President Donald Trump effectively declared a trade war with the whole world, new economic forecasts and surveys will point to the initial fallout.

President Donald Trump has repeatedly touted what he calls the return of manufacturing to the United States, hailing companies that have vowed to pour large amounts of money into making everything from computer chips to cars in America.

The Trump administration’s trade war has prompted chaos and countermeasures across the globe, but a potent counterattack has emerged in the courts in recent weeks — and in the long run, it could fatally undermine Trump’s unprecedented global tariff regime.