Stakes high in 2 Ontario byelections Thursday

The results of two Ontario byelections this week will offer a key indication about whether or not the province is thrown into a spring election.

Voters head to the polls Thursday in the north Toronto riding of Thornhill and in Niagara Falls.

Click on the image above to watch CBC's provincial affairs reporter Genevieve Tomney set up the two races.

Also, CBC provincial affairs specialist Robert Fischer spoke about the byelections today on CBC Radio's Metro Morning.

Fischer said the Liberals face an uphill battle to get a win in either riding, a scenario he said makes a spring election more likely. Click on the "listen" box in the story sidebar to hear Fisher's interview on Metro Morning.