In this edition of This Week In Politics, Prime Minister Mark Carney visited the White House for a 1-on-1 visit with U.S. President Donald Trump. Even if the Oval Office chatter didn't accomplish much, did it at least calm the waters in a testy trade war? History, as they say, will be the judge of that. Meanwhile, Alberta could soon become the hosts of a political flood, as rumblings of a potential separation from Canada aren't going away anytime soon.