Your comments seem to suggest a bit of forgetfulness. 

Thanks to the Americans, there was a great recession n 2008. The governments of the west, in order to fight this recession would go into debt as per standard Keynesian theory . Both Canada and the US ran very large deficits. In Canada the NDP and Liberals responsibly supported the government  for this spending. The conservative government reduced the deficit over the years to nothing, something the Americans did not do. 

Now the Liberals are accusing the conservative of mismanagement conveniently forgetting they supported this spending.

The problem with Trudeau is that he has no economic reason to run such large deficits and leaves the country vulnerable to any down turn in the economy.