Earlier this week the Supreme Court heard arguments about the constitutionality of President Obama's signature domestic achievement, the Affordable Care Act. On Saturday Chris will take a close look at the case. He and his guests will discuss in depth its central point of contention: the mandate to purchase insurance, as well as the implications of the court's upcoming decision, and the hidden story within the bill. Joining Chris at 8AM ET on MSNBC are:

Sen. Sheldon Whitehouse (D-RI) (@SenWhitehouse), member of the Senate's Health, Education, Labor, and Pensions Committee.

Dr. Claudia Fegan, chief medical officer for the John. H. Stroger, Jr. Hospital of Cook County in Chicago.

Neera Tanden (@neeratanden), president of the Center for American Progress and former member of the Obama and Clinton administrations.

Tim Carney (@tpcarney), senior political columnist at the Washington Examiner.

Akhil Amar, Sterling Professor of Law and Political Science at Yale University.
-Brett Brownell (@brettbrownell) is not a guest on the show but is video and web producer for Up w/ Chris Hayes which airs on MSNBC Saturday and Sunday morning.
