Panelists previewed the Supreme Court oral arguments on the constitutionality of the 2010 health care law requirement that people purchase health care coverage by 2014 or face a financial penalty. Michael Cannon and Randy Barnett reasoned that the mandate is unconstitutional, with Mr. Barnett calling it “unprecedented,” "uncabined," “unnecessary,” and “dangerous.” Elizabeth Wydra argued that the requirement is constitutional on the grounds of the interstate commerce and necessary and proper clauses. Afterward, they answered questions from the audience.