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.