Canada's PM and Conservative leader Harper pauses for a sip of water during a campaign rally in Toronto...
Canada's Prime Minister and Conservative leader Stephen Harper pauses for a sip of water during a campaign rally at William F. White International Inc, a stage lighting equipment supplier in Etobicoke, a suburb of Toronto, October 13, 2015. Canadians will go to the polls for a federal election on October 19. REUTERS/Mark Blinch