As promised, U.S. President Donald Trump has signed an executive order imposing a 25 percent tariff on all imports from Canada and Mexico, including a 10 percent tariff on Canadian energy. The White House says tariffs will go into affect on Tuesday. We have extensive coverage of Washington's demands - and reaction from across Canada.

Also: A new draft bill in Quebec aimed at integrating newcomers rejects multiculturalism... in favour of what it calls 'inter-culturalism'. What does that mean, and why is Quebec focused on it?

And: The Canada-U.S. border has become a source of tension with the Trump administration. Earlier this week, CBC News tagged along with the RCMP in Quebec, where Donald Trump’s spotlight on the northern border - and mass deportation threat - loom large.