WASHINGTON — House Democrats acknowledged they don’t yet have the votes to pass a sweeping overhaul of the nation’s health care system, and signaled they may push back the vote until Sunday or early next week.

Majority Leader Steny Hoyer, D-Md., told reporters in a conference call Friday that the make-or-break vote on President Barack Obama’s push to make health coverage part of the social safety net could face delay. Democrats were originally hoping to pass the bill on Saturday and officially, that’s still the plan.