OP-ED. On February 20, the justices of the Supreme Court challenged a central pillar of Donald Trump's policy: The imposition of tariffs without a Congressional vote. However, the consensus on the ruling should not obscure the deep divisions among the justices, analyzes Idris Fassassi, a professor of public law, for Le Monde.

Stephen S. Roach welcomes the decision that US President Donald Trump’s destructive trade policy is unconstitutional.

OP-ED. On February 20, the justices of the Supreme Court challenged a central pillar of Donald Trump's policy: The imposition of tariffs without a Congressional vote. However, the…