“If we don't win that case, our country is going to suffer so greatly, so greatly,” the president said on Wednesday.

US president says if high court makes ‘the wrong decision, it will be devastation for our country’.

The decision on tariffs introduces fresh uncertainty, says Gregory Daco, EY-Parthenon chief economist.

Previously imposed tariffs could be refunded, but not without some red tape.

President Trump is counting on the Supreme Court to save the centerpiece of his economic engine – sweeping tariffs.

“If we don't win that case, our country is going to suffer so greatly, so greatly,” the president said on Wednesday.

President continues ‘to do illegal things at astonishing pace’ as administration escalates more cases

"This alone would raise further concerns about the fiscal outlook and likely push bond yields higher."