Gov. Gavin Newsom on Wednesday is expected to announce a lawsuit arguing that President Trump lacks the authority to enact the international tariffs without the support of Congress.

California Gov. Gavin Newsom said Wednesday that his state will file a lawsuit challenging President Donald Trump's authority to impose sweeping tariffs that have set off a global trade war. The suit will argue that Trump's use of the International Emergency Economic Powers Act to impose tariffs on Mexico,

President Donald Trump’s tariff exclusions for smartphones and other tech products have added to a growing set of confusing signals for companies and trading partners digesting how to engage a White House still promising to negotiate dozens of new deals in America’s favor.

President Donald Trump has a net negative approval rating in six of seven polls taken in the wake of his sweeping tariff announcement on April 2—though most Americans don’t think Trump will stick with the new levies,

President Donald Trump says he might temporarily exempt the auto industry from tariffs he previously imposed on the sector, to give carmakers time to adjust their supply chains

President Trump has ordered a probe that may result in tariffs on critical minerals, rare-earth metals and associated products such as smartphones.

This is the start of a critical week for the White House, with a new round of tariffs on the way.