In the Canadian border city of Windsor, Ont., what was supposed to be a celebration of Canada-U.S. trade talks, is instead highlighting how much that relationship has soured. After eight years of construction and $6.5 billion, the Gordie Howe International Bridge connecting Windsor with Detroit was officially unveiled with a ribbon cutting ceremony on the Canadian side of the border today, but American dignitaries were disinvited after Donald Trump’s latest tariff threat. As Mackenzie Gray reports, the celebration of Canadian pride caught the attention of the American president.