Dennis Matthews: The ad war can win or lose an election. We now have a good sense of where the attack lines are being drawn by the Liberals and Tories.
Opinion: Companies like Gillette and Nike are doing what once would have been unthinkable—linking their brands with politics. They didn’t have a choice.
Opinion: As Justin Trudeau continues to burnish his Superman brand, Andrew Scheer should be driving an election-day contrast with an Avengers-style approach