Compare how the CBC, the largest and most powerful news media organization in the country,  relentlessly harassed Harper with a never-ending stream of details concerning the Mike Duffy affair with the CBC's kid-glove treatment of Trudeau over cash-for-access.  Wonder if there is a connection between Trudeau giving a lot more money to the CBC than Harper?
The lack of CBC coverage may also  be one reason the Liberal MPs are saying that they are nor hearing complaints at the constituency level.