Even as the holiday season is fast approaching, the US Senate appears to have hit the crossroads.
US President Barack Obama's Republican foes vowed Friday to derail legislation to enact health care reform, his top domestic priority, aiming to thwart plans for its passage by Christmas.
The president's Democratic allies, meanwhile, strove to unify their side in a bid to firm up a strategy that could set the stage for a key vote shortly after midnight Monday and possible final showdown on Christmas Eve.
And, with a massive snowstorm poised to hammer the US capital, they pounded Republicans for trying to delay an annual military spending bill in a bid to thwart action on health care.
Republican Senate Minority Leader Mitch McConnell said he expected an as-yet undisclosed Democratic compromise would likely be unveiled early Saturday and mocked prospects the bill would secure the 60 votes needed to ensure passage.
"I think there's a good chance that they will not be able to get their members to lock arms and walk off the cliff in obvious defiance of the American people," McConnell told reporters.
With the chamber's 40 Republicans expected to stay united against the plan, Democratic Senate Majority Leader Harry Reid has zero margin for error.
A handful of hold-outs among the 58 Democrats and two independents in the Senate were still warning him that the measure must change to win their support.