Abigail Moncrieff, an associate professor at Boston University School of Law, explains the Supreme Court’s decision in a guest post. The validation of the law was a long time coming, she writes. “Today is a very good day for President Obama and for United States health care reform,” she writes. “It’s also a pretty good day for Congress. The Court saved the members from needing to start the next 100-year slog toward workable insurance coverage for all Americans.”