House Republicans have voted for the 52nd time to change the president's health care law. The 248-179 vote comes just days after the law beat expectations by signing up more than 7 million Americans.
The bill passed Thursday would change the law's definition of full-time work from 30 hours a week to 40 hours a week. The result would be that fewer workers would get employer-sponsored health coverage.
Republicans say the change would give relief to businesses that have to cover full-time workers or pay a fine. They seized on a recent report saying the law will lead workers to cut their hours or leave the workforce.
Democrats say "Obamacare" is starting to work and accuse Republicans of playing politics in an election year.