 The NDP's surprise victory was attributed to the unpopularity of the Prentice government's budget, a strong performance by Notley in the leaders' debates, and splitting of the right-wing vote between the PC and Wildrose Parties.On May 22, 2015, Notley suspended a caucus member, leaving her party with 53 out of 87 seats, which did not change the balance of power in the legislature.The NDP held 52 seats at the time of the legislature's dissolution in March 2019, and were defeated in the ensuing general election on April 16, 2019, making it the first one-term government in provincial history.