In the ongoing conflict over Line 5’s presence and future in Michigan, much of the debate has been between the Canadian energy company Enbridge, Inc. and the state of Michigan, or between Michigan environmentalists and Michigan businesses.
A recent joint committee session in the Michigan Senate heard from a third party: Canada.
Great Lakes Now
https://www.greatlakesnow.org/2021/03/enbridge-line-5-debate-canadian-representatives-impact-economy/