NDP Leader Tom Mulcair congratulated Liberal Leader Justin Trudeau on winning a Liberal Majority and thanked Stephen Harper for his service as Prime .\r<br>\r<br>\r<br>\r<br>Welcome to the official Global News channel on YouTube. Please subscribe and join us at our website: .\r<br>\r<br>Forty-seven years after Pierre Trudeau rolled to power with a Liberal majority, Trudeaumania has swept the nation again. His son Justin has won the confidence .