I discovered a new podcast a couple of weeks ago that takes a very interesting look at the U.S. Supreme Court. It's called More Perfect and it's a spin-off from Radio Lab. The podcast is available on the NPR ONE app.
So far I've listened to an episode about attempts to abolish the death penalty, Earl Warren's favorite case, the Indian Children's Welfare Act and how plaintiffs get picked for test cases.
I recommend giving it a listen or two.