Canada sees U.S. approving Keystone pipeline
Oliver, speaking to a Reuters editorial board, said the project still made enormous economic sense for the United States. A recent decision by the state of Nebraska to back changes to the pipeline's route was significant, he added.
"I think it will go through, but obviously later than we had hoped," he said.
(Reporting by David Ljunggren and Jeffrey Jones; editing by Janet Guttsman)