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• Pipeline advocates in the Senate, who include several Democrats on the ballot next fall as well as Republicans, hold a clear majority. They also may command more than the 60 votes needed to overcome blocking tactics by opponents, but they appear to be short of the two-thirds majority that would be needed to override any veto by President Barack Obama.
• "I will press hard for a vote in the coming weeks to build this pipeline," Sen. Mary Landrieu, D-La., the chair of the Senate Energy Committee, said this week in a statement as lawmakers returned from a two-week break. Landrieu and Sen. Mark Begich, D-Alaska, another pipeline supporter, stand accused by Republicans of being powerless to mandate the project's construction, given the numerous delays Obama has ordered without rendering a decision.
• In addition, Majority Leader Harry Reid, D-Nev., faces pressure from Republicans to permit a vote on the project, with the Senate expected to debate energy-efficiency legislation in the next few days.
• Sen. John Hoeven of North Dakota said he and other Republicans want the issue voted on either as a part of the energy-efficiency legislation or shortly afterward as a stand-alone bill. He said rank-and-file Republicans have "taken a very strong position" that one or the other must occur.
• Aides said no decision had been made, but Reid said he had met in the last 24 hours with both Landrieu and Hoeven and left open the possibility of permitting a pipeline vote. "I'm open to anything that will move energy efficiency," he said.
• The White House declined to comment on the latest Keystone gambit, but Obama threatened to veto a previous effort, in 2012, to attach approval of the project to a transportation bill.
• The pipeline project has long been at a vexing crossroads of energy policy and politics that confronts Democrats.
• The 1,179-mile project is proposed to go from Canada through Montana and South Dakota to Nebraska, where it would connect with existing pipelines to carry more than 800,000 barrels of crude oil a day to refineries along the Gulf Coast.
• Advocates say it will create thousands of jobs and aid energy independence, but environmentalists warn of possible spills and say transporting oil will eventually contribute to global warming.
• The State Department said in a Jan. 31 report that building the pipeline would not significantly boost carbon emissions because the oil was likely to find its way to market by other means. It added that transporting it by rail or truck would cause greater environmental problems than if the Keystone XL pipeline were built.
• The administration unexpectedly ordered another delay in its decision earlier this

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