Refunds for importers and negotiations for new trade deals are among issues to watch after the Supreme Court overturned Trump's tariffs.

Trump, as recently as Thursday, has talked up the consequences of the Supreme Court striking down his tariffs prior to the seismic ruling.

Supreme Court Justice Brett Kavanaugh, in his dissent, warned that "the refund process" for tariffs "is likely to be a 'mess,' " citing oral arguments