Thank you for this insight.Adding some local context here. The Windsor-Detroit Corridor is an extremely busy trade route with the bottleneck being that only the ambassador bridge connects them across the Detroit river. (There is a tunnel but its for car traffic only). The Gordie Howe bridge project was started about 10 years ago to create a bypass that would ease the choke point.
The $6B project was ENTIRELY funded by Canada and contrary to the orange moron did use significant US steel and US workers in its construction.
Here is what is really going on... The family that owns the ambassador bridge has been trying to tie up the project in court for years, arguing that they have sole right to collect tolls to cross the river and that the new bridge infringes on that right. They also happen to be big trump supporters and have been appealing for him to stop the bridge. So just another routine case of cash'n'carry government.
After the bridge bit...I got nothing.
I do think its hilarious that his knowledge of Canada is so limited that the only threat he can think of revolves around hockey.
Trump's post is now seen to be entirely rational*, donors want him to put the fix in to potential foreign (Canadian) competitor which threatens their income stream. Acting to support a US business against foreign competition is exactly what Trump was elected to do. Making donations to a politician to get their attention to an issue is exactly the way the US system is designed to work. I imagine Trump will offer Canada the right to own and maintain the bridge in exchange for a US company having the right to collect the tolls.
*Well apart from the bit about Ice Hockey.