Newsom made the remark during an interview with MSNBC, in response to Trump’s assertion that Newsom had previously agreed to the deployment during a late-night Friday call.

Newsom said instead Trump had barely wanted to discuss LA, and that it was a “decent conversation”.

“He’s a stone cold liar,” Newsom said.

“I respect the presidency. I’ve attempted to extend an open hand to him, tried to collaborate with him. (You) can’t collaborate with Donald Trump. You can only work for him.

“And I will not – I refuse to work for Donald Trump.”

Newsom and LA Mayor Karen Blass have been leading the political opposition against the White House’s decision to deploy the National Guard and mobilize a battalion of Marines after protests erupted in LA last week over immigration raids by ICE.

Trump and his supporters claim it was necessary to keep the peace, portraying the protesters as a foreign element, with Trump today pledging to “liberate” the city.

But Newsom has accused Trump of willfully exacerbating the unrest.

In brief public remarks today, he said Trump was “pulling a military dragnet” across Los Angeles.

Newsom said Trump’s immigration crackdown has gone well beyond arresting criminals and that “dishwashers, gardeners, day labourers and seamstresses” are among those being detained.

He said Trump’s decision to deploy the California National Guard without his support should be a warning to other states.

“California may be first – but it clearly won’t end here,” Newsom said.

Newsom earlier asked a federal court to block the Trump administration from using the National Guard and Marines to assist with immigration raids in Los Angeles, saying it would only heighten tensions and promote civil unrest.

He filed the emergency request after Trump ordered the deployment to LA of roughly 4000 National Guard troops and 700 Marines to the city.

The federal government said Newsom was seeking an unprecedented and dangerous order that would interfere with its ability to carry out enforcement operations. A judge set a hearing for Thursday.

The Marines and another 2000 National Guard troops were sent to LA on Monday, adding to a military presence that local officials and Newsom do not want and that the police chief says makes it harder to handle the protests safely.

Marine Corps General Eric Smith said the Marines had not yet been called to respond to the protests and were there only to protect federal officials and property. The Marines were trained for crowd control but have no arrest authority, Smith told a budget hearing on Capitol Hill.

Marines were not seen on the streets yet, while National guard troops so far have had limited engagement with protesters.

LA’s mayor and the governor have said Trump is putting public safety at risk by adding military personnel even though police say they don’t need the help.