CTV National News for Aug. 29: Poilievre wants NDP to cut ties with Liberals

Conservative Leader Pierre Poilievre is calling on the NDP to pull out of the Liberal confidence deal to trigger an early federal election; a troubling rise of whooping cough cases across the country have sparked fears as back-to-school kicks off; and, a nine-month-long luxury cruise ship has dropped off 2,500 guests in New Brunswick.