Harper blew the national debt out of all proportion way before Trudeau came on the scene. Harper had a deficit BEFORE the world economy crashed in 2008 then had 7 straight years of deficits.  The Liberals had 7 years of surplus' before Harper put us in debt. Trudeau's debt is more than he campaigned on but no where near the hole Harper put us in! And oil was above $100/barrel for most of Harpers rule!