Once again, Trump’s aggressive, scattershot use of executive power has pushed us into new constitutional territory.

Donald Trump's wide-ranging taxes on imports were reinstated this week after being deemed illegal by a trade court. Their ultimate fate is yet to be decided.

Are President Trump’s global tariffs of "vast economic and political significance?" The answer could make or break the administration’s chance to keep the president’s “Liberation Day” tariffs in force as legal challengers try to undo them — especially if the dispute eventually reaches the Supreme Court.