“President Trump’s unlawful tariffs are wreaking chaos on California families, businesses, and our economy — driving up prices and threatening jobs. We’re standing up for American families who can’t afford to let the chaos continue,” Newsom said in a written statement.

The lawsuit cites the U.S. Supreme Court’s “major questions doctrine,” a legal principle that assumes Congress must weigh in on issues of major political or economic significance. The Supreme Court relied on the doctrine to strike down laws related to pollution control and student loan forgiveness under Presidents Joe Biden and Barack Obama, the governor’s office noted.

Newsom and the California legislature have set aside $50 million for legal action against the administration, despite asking it for $40 billion in aid to recover from recent wildfires.

The state is also borrowing billions of dollars monthly simply to pay for its Medicaid program, Medi-Cal, after Newsom expanded eligibility last year to include illegal aliens.

Newsom and Bonta hope to challenge Trump’s authority on the argument that while previous presidents have used their emergency powers to impose sanctions on foreign enemies, no president before Trump has done so to impose tariffs on trade.

It is unclear what the net economic effect of Trump’s tariffs will be, and the American public appears to be divided over the issue, with some applauding Trump’s leadership and others fearful of economic uncertainty.

Joel B. Pollak is Senior Editor-at-Large at Breitbart News and the host of Breitbart News Sunday on Sirius XM Patriot on Sunday evenings from 7 p.m. to 10 p.m. ET (4 p.m. to 7 p.m. PT). He is the author of The Agenda: What Trump Should Do in His First 100 Days, available for pre-order on Amazon. He is also the author of The Trumpian Virtues: The Lessons and Legacy of Donald Trump’s Presidency, now available on Audible. He is a winner of the 2018 Robert Novak Journalism Alumni Fellowship. Follow him on Twitter at @joelpollak.