Interesting Dec 23 Tyee article on whether Tom Mulcair should stay or go.
http://thetyee.ca/News/2015/12/23/Should-Mulcair-Stay-or-Go/
I think Muclair must go. He does not share NDP values. He supported bulk water exports, admired Thatcher, unilaterally declared balanced budget every year, forced NDP candidates out of the party for supporting Palestine etc, etc.
And he does not have good political instincts e.g. he took three weeks to oppose Bill C-51, he did not answer press questions on the first day of the campaign (just like Harper), shunned debates and did not come across well in debates as the rather unnerving "Grandpa" Tom with the bulging eyes. The campaign was a disaster, relentlessly hounding supporters for money with 4 o 5 emails a day! and featherweight campaign promises.
The NDP needs to rebuild as a social democratic party.