Federal court determined that President Trump doesn't have the authority to unilaterally impose tariffs, dealing a sweeping blow to his main weapon in his trade war.

President Donald Trump has audaciously claimed virtually unlimited power to bypass Congress and impose sweeping taxes on foreign products.

President Trump's sweeping tariffs were temporarily reinstated following a federal appeals court decision on Thursday. This comes after a federal trade court previously blocked most of Mr. Trump's levies against foreign nations.