the worst mayor Toronto has ever had

Quick question, what does the mayor have to do with this? The article says,

In Toronto, where the three routes would be removed and many others could be blocked, Mayor Olivia Chow has shown no signs of ... playing along with the premier’s plan.

Also, looks like it's not quite a done deal yet,

The legislation, introduced on Monday, still has to be debated and reviewed by a parliamentary committee before becoming law.

But what are the odds of it passing? I guess quite high, otherwise we wouldn't be worried about it.