Kathleen Wynne says she is resigning from her roles as the province's Minister of Municipal Affairs and Aboriginal Affairs, opening the door to a potential run for the leadership of the Ontario Liberal party.
   
Premier Dalton McGuinty made a surprise announcement two weeks ago that he was stepping down after 16 years as Liberal leader and nine as premier.
   
He has specified that anyone seeking to run for the party's leadership would have to resign from cabinet.
   
Wynne, who has long been rumoured to be a potential leadership contender, says she will be making an announcement on Monday, but hasn't provided any further details.
  
Wynne has held her Municipal Affairs and Aboriginal Affairs portfolios since October 2011.
   
Several other potential leadership candidates are said to be considering a bid, including former MP Gerrard Kennedy, who lost to McGuinty in 1996 by just 140 votes.