The White House on Wednesday urged Senate Democrats to avoid a vote on authorizing construction of the Keystone XL oil pipeline.

White House press secretary Jay Carney said a Senate vote would inject politics into the process and could delay a final decision. He said the Senate should hold back and allow the State Department to complete a review.

“What I can tell you is, the president has long maintained that it is appropriate for a process like this to be separated from politics and to be worked on and run out of the State Department, which has been the case through successive administrations of both parties,” Carney said.