Democratic attorneys general from Arizona and Oregon are co-leading a lawsuit to stop President Donald Trump’s tariffs.

The lawsuit said the policy put in place by President Donald Trump has left the national trade policy subject to Trump's "whims rather than the sound exercise of lawful authority." ...

A coalition of twelve states has filed a lawsuit challenging President Trump's tariff policy, arguing it's an abuse of power ...

A dozen states filed a federal lawsuit Wednesday challenging the Trump administration’s imposition of sweeping tariffs, arguing the president trampled on Congress’ powers to raise taxes.