By Brad Brooks, Jorge Garcia, Idrees Ali and Phil Stewart LOS ANGELES (Reuters) -U.S. Marines were deployed to Los Angeles on Friday, the military said, in a rare domestic use of its forces after days of protests over immigration raids and as nationwide demonstrations were expected on Saturday,

The Pentagon is scrambling to establish rules to guide U.S. Marines who could be faced with the rare and difficult prospect of using force against citizens on American soil, now that the Trump administration is deploying active duty troops to the immigration raid protests in Los Angeles.

In an exclusive interview with Meet the Press, Sen. Adam Schiff (D-Calif.) condemns President Trump’s call to send the National Guard and Marines into Los Angeles amid protests and criticizes the forceful removal of fellow California Sen.

The hearing comes after the 9th U.S. Circuit Court of Appeals granted a request by the administration last week to temporarily pause a lower court order that directed President Donald Trump to return control of the soldiers to the governor who filed a lawsuit over the deployment.

"No one signs up to join the United States Marine Corps to attack protesters," U.S. Rep. Seth Moulton, D-6th District, a former Marine, told MSNBC on Sunday.

Approximately 500 U.S. Marines are “prepared to deploy” to Los Angeles amid rising tensions between protesters and law enforcement over President Trump’s immigration policies, according to a

“Constitutionally, as a nation, we do not want to use active duty troops, deploy them against American citizens and others residing in our country. Because the impact is so negative. It makes it appear that the United States of America is a battleground,” Barthel said.

The Marine Corps battalion deployed to Los Angeles has finished its training for duty at the Los Angeles protests and could be deployed by Friday, according to the Department of Defense.The 700 Marines,