Dahlia Lithwick and Mark Joseph Stern unpack the arguments in the North Carolina and Maryland gerrymander cases heard by the Supreme Court this week, and Aaron Belkin of advocacy group Pack the Courts tells us why packing the courts is becoming a serious topic in the Democratic presidential race. Please let us know what you think of Amicus. Join the discussion of this episode on Facebook. Our email is [email protected] more about your ad choices. Visit megaphone.fm/adchoices