60-39. Senate Votes to Begin Debate

Senate Democrats on Sunday sparred with each other over how to fix the nation's troubled health care system, the moderates threatening to scuttle legislation if their demands weren't met and the more liberal members warning their party leaders not to bend.

The dispute among Democrats foretells of a rowdy floor debate next month on legislation that would extend health care coverage to roughly 31 million Americans. Republicans have already made clear they aren't supporting the bill.

Final passage is in jeopardy, even after the chamber's historic 60-39 vote Saturday night to begin debate.