Liberals and Bloc Québécois both have a lot riding on Terrebonne by-election

The Globe and Mail: If that alone makes the by-election race in Terrebonne unusually interesting, the riding’s fast-changing demographics could also make it a harbinger of tougher days ahead for the Bloc and its sovereigntist cousin, the Parti Québécois, in the suburban ring around Montreal. The solidly francophone region, referred to as “le 450” owing to its area code, once reliably sent Bloc MPs to Ottawa. But the influx of first- and second-generation immigrants, many of them from arrival neighbourhoods in Montreal, has altered its ethnic profile…