Three days of Supreme Court arguments over the health care law demonstrated for all to see that conservative justices are prepared to act as an alternative legislature, diving deeply into policy details as if they were members of the Senate Health, Education, Labor and Pensions Committee.

Senator, excuse me, Justice Samuel Alito quoted Congressional Budget Office figures on Tuesday to talk about the insurance costs of the young. On Wednesday, Chief Justice John Roberts sounded like the House whip in discussing whether parts of the law could stand if other parts fell. He noted that without various provisions, Congress “wouldn’t have been able to put together, cobble together, the votes to get it through.” Tell me again, was this a courtroom or a lobbyist’s office?