(FOX NEWS) With nothing less than the operation of government on the line, the battle in Congress over ObamaCare is shaping into a test of wills as lawmakers face a midnight deadline to resolve their differences or turn out the lights.

For the moment, the ball is in Senate Majority Leader Harry Reid’s court. The House, early Sunday morning, approved a bill that would fund the government past Monday while delaying ObamaCare by a year. It would also repeal a widely unpopular medical device tax.

But Reid has outright stated he will not accept any measures that undermine the health care law as part of the budget bill. Reid spokesman Adam Jentleson said Sunday that Reid, as he vowed, will reject this bill.

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