Alison Redford, the recently retired premier of Alberta, came to power because the Alberta Progressive Conservative Party threw open its election to non-party members, and she was duly elected by members of teachers and nurses unions. She proceeded to govern accordingly. I have also learned from sources close to Alberta that she was of the Clarkite school of red Tories. Having been a conservative inside the then Clark-influenced Mulroney years, I can assure you that Clarkites have much less argument with Liberals or NDP than they do with conservatives. Indeed, they despise actual conservatives, thinking that, like a bunch of atheistical bishops, they can fill the pews with new and more agreeable faces by squeezing out the old parishioners.
In the case of the conservative movement in Canada, the parishioners rebelled, created a new party (Reform) and took over the husk of the old Progressive Conservative Party when Joe Clark was finally eased out. They have run Canada for many ears now, some time of which with a majority. Everything proclaimed to be impossible, extreme, and infeasible by the Red Tory faction, has been proven to be possible, centrist, and practical by the former Reformers.