Forty House Republicans filed a brief last week in support of a legal challenge against ObamaCare that argues the law imposes billions of dollars in new taxes but did not originate in the House, as tax bills must under the Constitution. Rep. Trent Franks (R-Ariz.) spearheaded the effort by filing a "friend of the court" brief on Friday with the U.S. Court of Appeals for the DC circuit. That brief argued that ObamaCare violated the Origination Clause of the Constitution, which holds that all bills for raising revenue "shall originate in the House." The brief recounted how ObamaCare was ultimately...