<h1>National Guard deployments reduced; remaining troops confined to training and federal facility protection amid legal challenges to domestic use of forces.</h1> National Guard deployments to Portland, Chicago and Los Angeles have been reduced, with remaining troops limited to training and protection of federal facilities; many are barred from law enforcement or joint operations with DHS. A permanent injunction in Portland and pending litigation including a Chicago suit have challenged the administration's authority to deploy troops, alleging failure to meet the legal threshold and infringement on state sovereignty, while the administration seeks emergency relief pending appeal.