On Tuesday, November 10, 2020, the U.S. Supreme Court heard oral arguments on the third case challenging the constitutionality of the ACA.  The case brought by a number of Republican State Attorney Generals arose because Congress reduced the penalty attached to the individual mandate to zero. 

On Thursday, September 13, 2018, Maryland Attorney General Brian Frosh filed a lawsuit in federal district court in Maryland requesting a declaratory judgment that the Affordable Care Act (ACA) is constitutional, and a court order preventing the federal government from taking any action is inconsistent with that conclusion.