California sued Trump's first administration 123 times. Trump lost two-thirds of those cases, but experts warn that California could have a tougher go this time.

President Donald Trump is seeking to end birthright citizenship, a move to cut off a longstanding constitutional right that could leave hundreds of thousands of Texas children without legal status. The move has been questioned by legal scholars and it has already drawn lawsuits from the American Civil Liberties Union and a coalition of Democratic-led states.

California, a coalition of other states and the city of San Francisco have sued the Trump administration over President Trump's executive order aimed at ending birthright citizenship, calling it unconstitutional.