Trump’s supreme court strategy is to redefine ‘tariffs’. Will the justices buy it?

The fate of the US president's signature, globe-rattling economic policy is in the hands of a court he shaped

Donald Trump faced arguably the biggest test so far of his contentious use of executive power at the US supreme court on Wednesday. The stakes could not be higher - literally, LIFE OR DEATH" for the US, at least according to the president.

Trump's signature, globe-rattling economic policy, his sweeping tariffs regime, was in the dock - specifically, the legal mechanism his administration has used to enforce it. And the man dispatched to defend the White House put forward a somewhat puzzling argument.