California's attorney general filed a lawsuit Monday against President Donald Trump's emergency declaration to fund a wall on the U.S.-Mexico border. Joining in filing the lawsuit are the attorneys general of Colorado, Connecticut, Delaware, Hawaiʻi, Illinois, Maine, Maryland, Michigan, Minnesota, Nevada, New Jersey, New Mexico, New York, Oregon, and Virginia.

Xavier Becerra released a statement Monday saying 16 states — including California — allege the Trump administration's action violates the Constitution.

"President Trump treats the rule of law with utter contempt," Becerra said. "He knows there is no border crisis, he knows his emergency declaration is unwarranted, and he admits that he will likely lose this case in court."

Trump declared a national emergency to fulfill his promise of completing the wall.

The move allows the president to bypass Congress to use money from the Pentagon and other budgets.

California has repeatedly challenged Trump in court.

"President Trump is manufacturing a crisis and declaring a made-up 'national emergency' in order to seize power and undermine the Constitution," said California Gov. Gavin Newsom in a statement. "This 'emergency' is a national disgrace."