Glavin: Nobody knows what Canadians will even be voting about in October

The scripts are air tight, the talking points are nailed down, the candidates are all carefully rehearsing their lines and no matter what happens, the Conservatives, the Liberals, the New Democrats and the Greens will each strive to ensure that nothing gets in the way of what they’ve decided the upcoming federal election should be about. But a lot can happen in the seven weeks between now and polling day, and the thing that ends up making the difference will be, as likely as not, something