This photo taken in October 2016 shows an above-ground section of Enbridge's Line 5 at the Mackinaw City, Mich., pump station. Michigan Gov. Gretchen Whitmer has ordered the pipeline shut down because of concerns about a potential spill in the channel that connects Lake Huron and Lake Michigan. Enbridge is resisting the order with the support of Canadian officials who say Line 5 is essential to their economy. The disagreement comes months after U.S. President Joe Biden upset Canada by canceling the Keystone XL oil pipeline project.