Canadian Liberal Party leader Justin Trudeau smiles at the end of a press conference in Ottawa on October 20, 2015 after winning the general elections.  Liberal leader Justin Trudeau reached out to Canada's traditional allies after winning a landslide election mandate to change tack on global warming and return to the multilateralism sometimes shunned by his predecessor.   AFP PHOTO/NICHOLAS KAMM (Photo by AFP)        (Photo credit should read /AFP/Getty Images)