California Governor Gavin Newsom sued to halt Donald Trump’s tariffs, setting up a high-stakes legal challenge to the president’s landmark effort to overhaul global trade.

Gov. Gavin Newsom on Wednesday announced a lawsuit alleging that President Trump lacks the authority to enact the international tariffs without the support of Congress.

California Governor Gavin Newsom announced Wednesday that California will be filing a lawsuit to stop President Donald Trump's tariffs.