 I'm Dan Crocker, a reporter for NPR News based in Duluth. The money that comes from our members helps support my reporting. I am here to tell the stories of the people who live and work in the Arrowhead. Thanks for making it possible. Just how big a deal is the Supreme Court ruling on a president's immunity from prosecution? We hear from a constitutional law expert just ahead. I'm Kathy Werzer. It's Wednesday, July 3rd, and this is Morning Edition.