Gov. Gavin Newsom is threatening to sue President Donald Trump’s administration on Monday for deploying the National Guard to Los Angeles because of protests sparked by immigration raids without coordinating the move before making the decision.

“There’s a protocol; there’s a process,” Newsom told correspondent Jacob Soboroff Sunday in an interview on MSNBC. “He didn’t care about that. And the worst part? He completely lied.”

Newsom noted that Trump posted on social media that everything was safe after he had sent the National Guard — except the Guard had not been deployed at the time.

Newsom also dared for Trump’s border czar Tom Homan to “arrest me.” Homan threatened on Saturday to arrest anyone who obstructs the immigration effort, including city and state leaders.

“He knows where to find me,” Newsom said of Homan. “That kind of bloviating is exhausting. So, Tom, arrest me. Let’s go.”

Newsom and Los Angeles Mayor Karen Bass have been leading the opposition to Trump’s decision to deploy the National Guard to Los Angeles County after protests over federal immigration raids.

Newsom blasted the move in a fund-raising email sent out Sunday morning.

“Last night, President Trump ordered the deployment of 2,000 National Guard troops in Los Angeles, using the excuse of protests against his immigration raids. Let me be totally clear about what is happening here. We have been working closely with law enforcement. There is no unmet need. The president is attempting to inflame passions and provoke a response,” Newsom wrote.

“He would like nothing more than for this provocative show of force — and (Secretary of Defense) Pete Hegseth’s absurd threat to deploy United States Marines on American soil — to escalate tensions and incite violence.

“These are not people who have some deep conviction about protecting law enforcement. This is a President who failed to call up the National Guard when it was actually needed — on January 6th — and then pardoned the participants as one of his first acts as president.

“They want a spectacle. They want the violence. They think this is good for them politically. That is why White House aides were posting pictures of Trump getting popcorn last night. This is not the way a civilized country behaves. It is completely deranged behavior.

“To the people of Los Angeles and across the country who are protesting these immigration raids: Don’t give them the spectacle they want. Never use violence. Speak out peacefully and in large numbers. I know many of you have been watching the news about this, so I thought it important to reach out.”