“If the president wants to witness a refutation of his assertion that the survival of the Affordable Care Act is assured, come Thursday he should stroll the 13 blocks from his office to the nation’s second-most important court, the D.C. Circuit Court of Appeals. There he can hear an argument involving yet another constitutional provision that evidently has escaped his notice. It is the origination clause, which says: “All bills for raising reveornue shall originate in the House of Representatives; but the Senate may propose or concur with amendments as on other bills.””