The U.S. Supreme Court hears the last arguments of 2019 the week of Dec. 9, with an eclectic set of issues before the justices ranging from capital punishment to the latest Obamacare-related tussle.

They'll hear a dispute at the intersection of criminal law and immigration, a case that could impact patent litigation, and a complaint from health insurance companies that the government still owes them—big time, to the tune of $12 billion.

Also up for argument are cases from Arizona death row, a technical sentencing puzzle, and an international child custody dispute.