Pentagon was scrambling Monday 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.
U.S. Northern Command said it is sending 700 Marines into the Los Angeles area to protect federal property and personnel, including federal immigration agents. The 2nd Battalion, 7th Marines are coming from Twentynine Palms, California, and will augment about 4,100 National Guard members already in LA or authorized to be deployed there to respond to the protests.
Posse Comitatus supersedes that. It is specifically a restriction of the powers of officials and a law against an abuse of office. It has nothing to do with the personal shield that the Supreme Court gave him. It’s one of the few cases where he would be officially liable for the crime, rather than personally.
Not that any of it matters right now, since these laws aren’t being enforced anyway.