Washington (CNN) -- The Senate passed a $871 billion health care reform bill Thursday morning, handing President Obama a Christmas Eve victory on his top domestic priority.
The bill passed in a 60-39 party line vote after months of heated partisan debate. Every member of the Democratic caucus backed the measure; every Republican opposed it.
Should it become law, the measure would constitute the biggest expansion of federal health care guarantees since the enactment of Medicare and Medicaid more than four decades ago. It is expected to extend insurance coverage to 30 million additional Americans.