SACRAMENTO, Calif. — U.S. Attorney General Jeff Sessions brought the Trump administration’s feud with California to the doorstep of the state Capitol on Wednesday, suing over its so-called sanctuary state law and dramatically escalating a war with the liberal powerhouse in a sharp exchange of words with Democratic Gov. Jerry Brown.

Sessions was defiant as he spoke to local law enforcement officials about the lawsuit, citing a series of California laws that he says are unconstitutional and violate common sense.

“I can’t sit by idly while the lawful authority of federal officers are being blocked by legislative acts and politicians,” he said, straying from his prepared remarks.

Brown didn’t hold back in his response, calling Sessions a liar and saying it was unprecedented for the attorney general to “act more like Fox News than a law enforcement officer.” He accused Sessions of “going to war” with California to appease President Trump.

“What Jeff Sessions said is simply not true and I call upon him to apologize to the people of California for bringing the mendacity of Washington to California,” the governor told reporters.

The lawsuit is the latest salvo in an escalating feud between the Trump administration and California, which has resisted the president on issues from marijuana policy to climate change and defiantly refuses to help federal agents detain and deport immigrants. U.S. Immigration and Customs Enforcement has said it will increase its presence in California, and Sessions wants to cut off funding to jurisdictions that won’t cooperate.

The governor and state Attorney General Javier Becerra, who has sued the Trump administration numerous times, held a news conference just blocks from where Sessions spoke at a hotel, but they never interacted.

Sessions also used his speech to sharply criticize Oakland Mayor Libby Schaaf for warning the public about an unannounced raid by federal deportation officers recently in California. Sessions said it allowed hundreds of “wanted criminals” to avoid arrest.

“How dare you?” Sessions said.