George Smitherman has decided not to run for the Ontario Liberal leadership.

In a phone interview with Newstalk 1010, Smitherman says his decision has nothing to do with the challenges the party faces. He points to being a father of two young children and the fact that he has three new businesses on the go.

Smitherman is just the latest big name that had been tossed around to announce they won't go after the top job in the party.

Finance Minister Dwight Duncan and Energy Minister Chris Bentley have also said they will not be seeking the leadership or seek re-election.

There is still speculation Health Minister Deb Matthews, Municipal Affairs Minister Kathleen Wynne and Former Education Minister Sandra Pupatello will enter the race. Sources have told Newstalk 1010 former Health Minister David Caplan is seriously considering a go at it as well.

Smitherman doesn't close the door completely to politics, however, underlining it runs through his blood.

The Liberals will be choosing a leader in a convention in Toronto between January 25-27. Candidates have to register by November 23rd.