Fact is that Barry wanted this pushed back till after the election.

In the meantime, Canada has been actively working at selling oil to China (US's loss). As for shipping it via rail, fact is that Barry's biggest contributor stands to benefit the most. From an environmental point of view, pipelines are infinitely better than trains.

"The very powerful and the very stupid have one thing in common. Instead of altering their views to fit the facts, they alter the facts to fit their views... which can be very uncomfortable if you happen to be one of the facts that needs altering." – The Doctor (Tom Baker)