Liberal Leader Justin Trudeau waves while marching in the Vancouver Pride Parade in Vancouver, B.C., on Sunday August 2, 2015. A federal election will be held on October 19. THE CANADIAN PRESS/Darryl Dyck,Liberal Leader Justin Trudeau waves while marching in the Vancouver Pride Parade in Vancouver, B.C., on Sunday August 2, 2015. A federal election will be held on October 19. THE CANADIAN PRESS/Darryl Dyck