In October 2012, Lieutenant Governor of Ontario David Onley, on the advice of Premier Dalton McGuinty, who headed a minority government, prorogued the Ontario Legislature, with McGuinty announcing, at the same time, he would, after a new party leader was selected, resign both as premier and leader of the Ontario Liberal Party. Liberal House Leader John Milloy later stated that prorogation was necessary because an impasse was reached with labour leaders and the opposition over plans to freeze all public sector wages. The opposition charged that it was done to dodge negative publicity over the investigation and criminal probe into the Ornge Air affair, as well as the controversial decision to halt construction of two gas-fired power plants during the previous election and the subsequent threats by the opposition to vote on finding Cabinet ministers in Contempt of Parliament for withholding from the legislature information related to halting the projects