Prime Minister Justin Trudeau’s inner circle opens a three day cabinet retreat in Calgary onn Monday — and the big topic will be Canada-U-S relations. Canada’s ambassador to the U-S, David MacNaughton, will provide cabinet with an update on talks with the new administration. Regarding Trump’s “America First” messaging, MacNaughton says some businesses are concerned — but most understand Canada is doing what it can to ensure it maintains a strong relationship with its southern neighbour.