Some definitions will be useful here.
Alberta = Canada's Texas
Wildrose Party = Canada's Tea Party
Progressive Conservatives = Canada's RINOs
New Democratic Party = Canada's Democrats
Long story short, Canada's RINOs have been in charge of Canada's Texas for ages. They got fat and happy and spent like drunken sailors during the oil boom years. Then when the price of oil crashed last year meaning a huge hit to the state budget, they proposed a budget that both raised taxes and still ran a massive deficit.
So the voters of Canada's Texas were disgusted with Canada's RINOs, and threw them out of office yesterday. Canada's RINOs lost so many seats that they are no longer even the official opposition, that role being taken by Canada's resurgent Tea Party.
Canada's Texas won't tolerate Canada's Democrats for long. Expect Canada's RINOs to come to Canada's Jesus and rediscover fiscal responsibility, and join forces with Canada's Tea Party.