Supreme Court appears sceptical of legal basis for Trump tariffs
Case could determine the future of the US president’s global trade agenda
Case could determine the future of the US president’s global trade agenda

Judicial limits on the executive today will bind the hands of future presidents tomorrow

US trade policy hinges on obscure laws after Supreme Court ruled previous levies illegal

Uncertainty will linger as the president tests alternative legal options

Judges uphold ruling that the president exceeded his authority

The forthcoming ruling on Trump’s import duties will not stop him resorting to other methods

About 40 briefs have been filed challenging signature policy ahead of showpiece hearing