Health law challenge threatens government shutdown

AZ Central:  WASHINGTON (AP) -- 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.

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