The 40th Legislative Assembly of Ontario was a legislature of the government of the province of Ontario, Canada. The membership was set by the 2011 Ontario general election. It was controlled by a Liberal Party minority. The government was led by Premier Dalton McGuinty until his resignation resulted in the 2013 leadership election, which selected Kathleen Wynne as his successor. Wynne is the first woman ever to serve as Premier of Ontario. The Official Opposition was the Progressive Conservative Party, led by Tim Hudak, and the third party was the New Democrats, led by Andrea Horwath.