""Trudeau will have an uphill battle and will need the support of the NDP to keep the Conservatives in check""

I suspect with a majority, not much help is needed. Opposition parties, including the NDP, will likely be more of a thorn to Trudeau, especially since they are smarting from their "perceived" throne being stolen. The conservatives will likely be busy licking their wounds and "finding themselves", since they were led by a "one man show", and are feebly prepared for a change in leadership. Harper was not the mentorship type.