Paula Simons: Edmonton voters put councillors on notice

It wasn’t the kind of history, I’m sure, that Dave Loken wanted to make.
The conventional wisdom is that it’s next to impossible to unseat an incumbent city councillor.
In the last 20 years, only one sitting councillor has been defeated: Mike Nickel, who lost his seat to a young upstart named Don Iveson.
But Monday night, a new upstart named Jon Dziadyk, an urban planner, who’s also a reservist lieutenant with Royal Canadian Navy Intelligence, knocked off Loken, who&rsquo