01/06/2014 01:42 EST | Updated 03/08/2014 05:59 EST

Olivia Chow denies lieutenant-governor appointment rumour

New Democrat MP and possible Toronto mayoral candidate Olivia Chow says she hasn't been offered an appointment as lieutenant-governor of Ontario, despite a rumour reported Monday.

Chow, the MP for Toronto's Trinity-Spadina riding and widow of late NDP leader Jack Layton, is a strong contender in the city's 2014 mayoral race, according to a number of polls. She hasn't confirmed yet that she will run against Rob Ford, the city's beleaguered mayor. Ford filed his nomination papers last week.

A blogpost written by TVO's Steve Paikin said Prime Minister Stephen Harper could name Chow to replace David Onley, who has been Ontario's lieutenant-governor since Sept. 5, 2007. Lieutenant-governors serve for five years, although the term isn't set out in the Constitution and can be extended. Onley has held the role for more than six years.

Making Chow lieutenant-governor would take her out of the running for Toronto mayor and open up a federal riding in downtown Toronto.

Chow quickly took to Twitter to deny the story.

"It seems the rumor mill is in full force this morning. Let me be crystal clear, the reports of an LG [lieutenant-governor] offer are completely false," Chow tweeted.

Paikin said in his blogpost that he'd approached Chow about the rumour, and that she'd laughed and changed the subject without denying it.

The municipal election will be held Oct. 27.