The lawsuit contends that the U.S. Constitution and laws enacted by Congress give the federal government the "preeminent authority to regulate immigration matters" and that the Constitution does not allow a state to interfere with those powers.
Sacramento police say nobody was arrested in connection with the protests Wednesday outside a hotel where Sessions spoke to California law enforcement officials.
"The provisions of state law at issue have the goal and effect of making it more hard for federal immigration officers to carry out their responsibilities in California", the complaint filed in Sacramento states. "How dare you needlessly endanger the lives of law enforcement officials just to promote a radical open borders agenda?"
"This is really unprecedented for the chief law enforcement officer of the United States to come out to California and act more like Fox News than a law enforcement officer".
Brown and Becerra at a news conference in Sacramento said the three challenged laws are "fully constitutional".
California officials remain defiant and say they are on firm legal footing.
Trump administration sues California over 'sanctuary' policies
Jeff Sessions is suing CA because we refuse to help the Trump administration tear apart honest, hardworking immigrant families. California Attorney General Xavier Becerra said law enforcement in the state is focused on public safety, not deportation .
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He also called the Trump administration "full of liars".
"For undocumented families who already live in fear of being separated from their families, we know U.S. Attorney General Jeff Sessions' announcement brings heightened anxiety", he said in a statement.
"Here's my message - how dare you".
"We're in the business of public safety, not deportation", he said.
"There is no nullification; there is no secession", Sessions said.
The Justice Department filed a lawsuit against California, Brown and Attorney General Xavier Becerra yesterday. Schaaf said Tuesday that the city would "continue to inform all residents about their constitutional rights". "Her actions support those who flout our laws and boldly validate the illegality".
Brown speculated that Sessions' dig on California may be an attempt to ease an openly rocky relationship with the president, saying, "Maybe he's trying to keep his job because the president is not too happy with him". On Wednesday, Attorney General Jeff Sessions appeared in Sacramento, where he announced the lawsuit while expressing outrage in what can only be characterized as a lecture.
He added that "ICE agents do incredible work every day, they're not backing down, they're not going to be deterred, and we're not going to stop enforcing the law in Alabama, or California, either, for that matter".
"Those are 800 wanted criminals that are now at large in that community - 800 wanted criminals that ICE will now have to pursue by other means, with more difficulty in unsafe situations - all because of one irresponsible action", Sessions said.