Oregon Gov. Tina Kotek on Tuesday directed the roughly 200 members of Oregon National Guard troops who had been stationed at Camp Rilea, outside of Astoria, to demobilize and head home.

President Donald Trump's National Guard deployment in Oregon and Illinois faces court challenges as experts debate federal authority versus state sovereignty.

Federal courtrooms on opposite sides of the country on Thursday served as stages for the ongoing showdown between Democratic-led cities and the Trump administration, as judges weighed whether the president is exceeding his authority by deploying National Guard troops to quell demonstrations outside ICE facilities near Chicago and Portland.

Prominent Republicans say they understand the President's push. But most shifted the focus to local law enforcement.