Rep. Mike D. Rogers (R-Ala.) was meant to be an original sponsor of the bill from Rep. Jeff Duncan (R-S.C.). But according to Duncan's office, he was listed as Mike J. Rogers, the Intel Committee chairman. In October, the Alabama representative added his name to the list of co-sponsors.

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But taking someone off a bill requires the unanimous consent of the House, and that step was agreed to quickly Thursday night.

It was not immediately clear why the Intel Committee chairman is not co-sponsoring the bill; many Republicans have called for various investigations into the September attacks. But one House aide said his non-sponsorship could simply reflect the uncertainty in the House about exactly how to pursue the investigation.

The attack in Libya has been a particular focus of Republicans, because it led to the death of Ambassador Chris Stevens and three other U.S. officials. Earlier in the week, Sen. John McCainJohn Sidney McCainLawmakers worry about rise of fake video technology Democrats put Dreamers and their party in danger by playing hardball Trump set a good defense budget, but here is how to make it better MORE (R-Ariz.) said he would oppose the nomination of U.S. Ambassador to the United Nations Susan Rice because of her attempt to blame the Libya attack on an anti-Muhammed video.

Republicans have said evidence was available at the time indicating that it was a planned terrorist attack, and said the Obama administration ignored warnings of stepped-up violence.