At the 26 November 2011 general election, National gained 47.31% of the party vote, the highest percentage gained by any political party since MMP was introduced, helped by a lower voter turnout and the misfortunes of its traditional support parties. A reduced wasted vote enabled the party to gain 59 seats in Parliament, one more than in 2008. National re-entered confidence-and-supply agreements with ACT (one seat) and United Future (one seat) on 5 December 2011, enabling it to form a minority government with the support of 61 seats in the new 121-seat Parliament. National also re-entered a confidence-and-supply agreement with the Māori Party on 11 December 2011 for extra insurance, despite the parties differing on National's contentious plans to partially sell (or "extend the mixed ownership model to") four state-owned enterprises. This nearly led to a cancellation of the agreement in February 2012 over Treaty of Waitangi obligations for the mixed ownership companies, and again in July 2012 over water rights.