12 HOURS & counting....Obamacare Challenge Leaves Senate Scrambling, U.S. Government On Brink Of Shutdown

WASHINGTON -- A conservative challenge to the president's health care law has the federal government teetering on the brink of a partial shutdown.

The Senate has the next move on must-do legislation required to keep the government open past midnight on Monday, and the Democratic-led chamber is expected to reject the latest effort from House Republicans to use a normally routine measure to attack President Barack Obama's signature health care law.

Congress was closed for the day on Sunday after a post-midnight vote in the GOP-run House to delay by a year key parts of the new health care law and repeal a tax on medical devices as the price for avoiding a shutdown. The Senate is slated to convene Monday afternoon just 10 hours before the shutdown deadline, and Majority Leader Harry Reid, D-Nev., has already promised that majority Democrats will kill the House's latest volley.

A House GOP leader, Rep. Kevin McCarthy of California, said the House would again rebuff the Senate's efforts to advance the short-term funding bill as a simple, "clean" measure shorn of anti-heath care reform provisions. read more...