QP Podcast # 270: Canada's Ambassador to the U.S. David MacNaughton wants American aid in Canadian dispute with China

Canadian Ambassador to the U.S. David MacNaughton; MPs Tracey Ramsey, Lisa Raitt and Marc Miller; Border Security Minister Bill Blair; The Toronto Star's Tonda MacCharles, CTV News' Joyce Napier, CTV News Chief Political Commentator Craig Oliver, former NDP leader Tom Mulcair and former finance minster John Manley.