The ruling from Senior U.S. District Judge Charles R. Breyer represents an obstacle to any further use of National Guard troops to assist local police in more cities. Following deployments to LA and Washington, D.C., Trump has openly mused about federalizing other state National Guard troops and sending them to major cities like Chicago and Baltimore he says are overwhelmed with crime. Breyer, whom Democratic President Bill Clinton appointed in 1997, said Trump could not use the National Guard for a wide array of police activities in California. In short, Defendants violated the Posse Comitatus Act.”National Guard expandedThe judge expressed concern about Trump and Defense Secretary Pete Hegseth’s statements they wanted to expand the role of National Guard troops for law enforcement. That appeals ruling dealt with Breyer’s finding that Trump likely violated the president’s legal authority to federalize National Guard troops.