The House passed a bill Thursday to ban new subsidies to help people buy health insurance until the Obama administration enacts a new verification system to ensure benefits go only to those who are eligible. Democrats say the bill, which has no chance in the Democratic-controlled Senate, would unnecessarily delay subsidies slated to start next year. The White House has threatened a veto. Thursday's vote was the 41st by House Republicans to repeal, de-fund or change the health care law since it was passed in 2010 without a single Republican vote. A few changes have been enacted, but the effort has largely been unsuccessful.