Update 1:30 a.m. EDT: More than an hour after the government shutdown began, House Republicans voted in support of amendments that do not provide funding to implement the Affordable Care Act, or Obamacare. 

The House will now send the bill to a conference committee, which has proposed to iron out differences with the Senate. But, the Senate needs to approve a motion to move to the conference, and Senate Majority Leader Harry Reid (D-Nev.) had said an hour before the shutdown that the Senate “will not go to conference with guns to our heads.” The Senate adjourned at 12:18 a.m. EDT and is scheduled to reconvene at 9:30 a.m. EDT to continue discussing striking an agreement with the House.

Update midnight EDT: The White House Office of Management and Budget has issued official instructions for government agencies to shut down.

The memo directs them to "execute plans for an orderly shutdown due to the absence of appropriation."

Fox reports the House is to vote on "rule" around 12:30 a.m., which simultaneously passes the old CR and moves to go to conference committee. Then more debate, and a final vote around 2 a.m.

Update 11:40 p.m. EDT: The House Rules Committee has agreed by a party-line 7-4 vote to seek a conference with the Senate, said Chairman Pete Sessions, R-Texas.

The House has reconvened to debate the move.

Update 11:05 p.m. EDT: Majority Leader Harry Reid declared on the Senate floor: "We will not go to conference with a gun to our head. The first thing the House has to do is pass a clean six-week CR." 

"This is all a subterfuge to satisfy the tea party-driven Republicans," Reid said according to MSNBC

Update 10:30 p.m. EDT: The House Rules Committee is meeting to appoint two members to a House-Senate conference, which would breach the midnight dealdine and trigger a shutdown, Fox reports.

A GOP leadership aide said the House would revote its continuing resolution and then appoint two conferees. National Review Online reports that Speaker John Boehner has ruled trying to pass a "clean" CR since his members would revolt. 

Sen. Ted Cruz, R-Texas, tweeted to his fellow Republicans across the Capitol, "#DontBlink," but Sen. John McCain, R-Ariz., said House Republicans should pass a "clean" CR and their strategy "can't win." 

Update 9:40 p.m. EDT: The Senate has rejected the latest measure passed by the House, with less than three hours to go before a federal government shutdown. The vote once again was a party-line 54-46.

Majority Leader Harry Reid said House Republicans have "lost their minds."

Sen. Rand Paul, R-Ky., a leading voice to stop Obamacare, said he favors passing a "clean" continuing resolution for a week or two to continue the negotiations, MSNBC reports.

Update 9 p.m. EDT: The House has passed a resolution keeping the government running but delaying the individual mandate for health care reform by a 228-201 vote.

Twelve Republicans and nine Democrats broke ranks to vote against their leaders' wishes. The Senate is expected to reconvene shortly.

Original story:

A “revolt” by House Republican “moderates” fizzled Monday evening when the chamber took a procedural step at 7:15 p.m. EDT toward its next vote on a spending bill with anti-Obamacare provisions.

Meanwhile President Barack Obama suggested a six-week extension of government funding in a phone call to GOP leader, CBS reported.

The House approved 225-204 the bill's "rule," which allows the House to skip normal procedures and bring the latest House GOP continuing resolution proposal to the floor for a vote this evening. Six Republicans voted against the rule with Democrats: Reps. Michele Bachmann of Minnesota, Paul Broun of Georgia, Charlie Dent of Pennsylvania,  Louie Gohmert of Texas, Peter King of New York and Steve King of Iowa, according to Talking Points Memo. 

Of those six, only Dent and Peter King dissented from the “moderate” side. The others wanted a harder line against funding Obamacare.

The two Northeasterners had been feverishly making calls to stage what would effectively be a revolt, CNN reported. “How many of them are going to follow up today with the pressure and everything else, I don’t know,” King told National Review Online in a phone interview.

King wants to pass a “clean” continuing resolution bill. “This is going nowhere,” he said of the standoff with Senate Democrats. “If Obamacare is as bad as we say it’s going to be, then we should pick up a lot of seats in the next election and we should win the presidency in 2016. This idea of going through the side door to take something you lost through the front door — to me, it’s wrong.”

"We have people in the conference, I believe, who'd be just as happy to have the government shutdown," King told CNN. "They live in these narrow echo chambers. They listen to themselves and their tea party friends. That keeps them going, forgetting that the rest of the country thinks we're crazy."