The blowback eventually prompted Trump to pause some of the most punishing tariffs for 90 days. With every move, the US president underscores that he is calling the shots, though the US Constitution gives Congress the last word in setting import duties.

Twelve states sued the Trump administration, claiming it illegally used emergency powers to impose tariffs that could worsen inflation and violate constitutional limits.

A group asked permission to file a brief in a lawsuit over President Donald Trump's tariffs, claiming the president doesn't have the power to impose import