The story of birthright citizenship is as San Francisco as they come,” City Attorney David Chiu declared. On Tuesday, San Francisco and California Attorney General Rob Bonta filed a lawsuit to halt President Donald Trump’s order on birthright citizenship.

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.

California Attorney General Rob Bonta today filed a lawsuit challenging the Trump Administration’s unconstitutional executive order seeking to end birthright citizenship. Under the Fourteenth Amendment to the U.S. Constitution, all children born on U.S. soil are automatically granted U.S. citizenship and the rights and privileges that come with it.

The lawsuit: Birthright citizenship is enshrined in the U.S. Constitution’s 14th Amendment, Bonta said at a Tuesday news conference. He called Trump’s executive order “blatantly unconstitutional” and “unAmerican,” adding, “I’ll see you in court.”

The lawsuit, filed by more than a dozen state attorneys general, seeks to block Trump's effort to revoke birthright citizenship, which is enshrined in the U.S. Constitution's 14th Amendment.

Eighteen states, the District of Columbia and San Francisco will seek a preliminary injunction blocking a Trump order denying citizenship to U.S.-born children of unauthorized immigrants.

California's top prosecutor announced Tuesday that the state has filed a lawsuit in response to President Donald Trump's executive order ending birthright citizenship.

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.