Why stop at grift and graft?

 Go straight to extortion. No one's going to stop him.

Amid a trade war and a deepening rift between the United States and its northern neighbor, Mr. Trump said that he would “not allow” the opening of the Gordie Howe International Bridge, scheduled to open early this year for traffic between Detroit and Windsor, Ontario, “until the United States is fully compensated for everything we have given them, and also, importantly, Canada treats the United States with the Fairness and Respect that we deserve.”

[...]

It was not immediately clear how Mr. Trump would block the opening of the bridge. Its construction was paid for by Canada, and a public-private arrangement , under which Canada and Michigan would jointly operate the crossing, gives Michigan part ownership.

  NYT

No doubt there's some sort of national security emergency he can claim.

Trump also suggested in his social media post on Monday that the United States might seek to acquire “at least one half” of the new bridge and to get a cut of the revenue from bridge tolls.

In his first term, Mr. Trump had promoted the project in a joint statement with Canadian officials as a symbol of the countries’ deep economic partnership and as “a vital economic link between our two countries.”

[...]

The nearby Ambassador Bridge, one of the busiest border crossings on the continent, has been privately owned for decades by a Detroit trucking industry billionaire and his family, the Morouns. The family had previously called on Mr. Trump to halt the construction of the Gordie Howe bridge — which would, once opened, compete for the more than $300 million in daily cross-border trade over the Ambassador Bridge.

Oh. I see.