Medical device industry lobbyists may have gained the opening they need to beat back the 2.3% tax companies now face as part of the Affordable Care Act. And it comes from President Barack Obama's administration. Officials this week announced a one-year delay until 2015 to the law's employer mandate, which requires medium and larger employees to offer health insurance or face penalties. But as a Bloomberg editorial argues, the decision to cave on the deadline will push business groups to seek more concessions and invigorate trade association lobbying efforts against the tax that had begun to peter out. Editorial