The last Supreme Court oral arguments of 2019 are in the books, the first opinion of the term is out, and litigation over subpoenas investigating President Trump is knocking at the high court's door.

In this deep dive recap of the December session, Munger, Tolles & Olson partner Elaine Goldenberg joins "Cases and Controversies" hosts Kimberly Robinson and Jordan Rubin to break down some of the session's biggest arguments—on the Second Amendment and Obamacare—and the first opinion of the term in a debt collection case that could have implications in other areas of the law.

They also take on the denial of the closely-watched petition in the Adnan Syed "Serial" case, as well as high-profile litigation over subpoenas into Trump's financial information and the high court's blocking of his administration's attempt to resume federal executions—for now, anyway.