The TPA's efforts in partnership with Porter to expand the airport has placed it in opposition to various communities in Toronto and Toronto City Council, which in 2003 cancelled a TPA-planned bridge to the airport. Additionally, the agency has been involved in several disputes, including a land dispute, harbour fees and property taxes with the City, and lawsuits over the operation of the airport with Air Canada. In 2013, Porter proposed an expansion of the airport to support the introduction of jet airplanes to the airport. Toronto City Council refused to endorse the proposal and sent it to the TPA for study. The jet proposal was cancelled in December 2015 after the newly elected Liberal federal government announced it would not renegotiate the operating agreement of the airport to allow jets.