This may be an unpopular opinion but we should consider moving the Canada / US border 250km north along the Detroit river. Moving the border north 250km would reduce the amount of cross border trips for the automotive industry negating a lot of the tariff issues. And I don’t think the geniuses ruling the US would realize that moving the border north along this stretch would result in Canada gaining over 9000km² of land.
The reason this may be unpopular is because Canada would inherit the Detroit Red Wings.
What confuses me is that the Detroit river, and the border with it, runs almost completely north to south. So saying you want to move that border westward to absorb Detroit would make a hell of a lot more sense.