A federal judge in Texas issued a ruling Friday declaring the Affordable Care Act unconstitutional, apparently setting the stage for another hearing on the health care law by the U.S. Supreme Court. Plus, President Trump names Mick Mulvaney as his Interim Chief of Staff, and Ryan Zinke will step down as Secretary of the Interior amidst allegations of ethics violations. This episode: White House correspondent Tamara Keith, White House correspondent Scott Horsley, and national political correspondent Mara Liasson. Email the show at nprpolitics@npr.org. Find and support your local public radio station at npr.org/stations.