President Donald Trump is waging a trade war without getting approval from Congress: He declared a national emergency to slap import taxes — tariffs — on almost every country on earth.The president is now facing at least seven lawsuits that argue he’s gone too far and asserted power he does not have.

Trump has long praised tariffs as a key tool for negotiating with other countries and collecting federal revenue.

Donald Trump's tariff blitz is yielding some initial deals, including a 90-day pause in sky-high U.S. and Chinese duties and a limited trade pact with Britain, but the U.S. president is far from rebalancing global commerce flows,