Donald Trump’s vowing to fight the ruling that many of his imposed trade tariffs are illegal. 

The US Court of Appeals has ruled Trump went too far when he declared national emergencies to impose the sweeping import tariffs. 

The tariffs remain in place until mid-October to allow a Supreme Court appeal. 

Waikato University international law expert Al Gillespie says it's a 50-50 chance whether or not Trump's appeal will be accepted by the Supreme Court.

He says that although Trump has a balance that favours him in the Supreme Court, the American judges are independent people. 

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