Tzipi Livni parties' majority in the Knesset. Consequently, she served as Leader of the Opposition from 2009, until her resignation from the Knesset in 2012. Later that year, Livni founded a new party, Hatnuah, to compete in the 2013 elections, after which she was appointed Justice Minister in the Thirty-third government of Israel, again leading a new round of Israeli–Palestinian peace talks. In December 2014, a number of policy disputes within the government led Benjamin Netanyahu to dismiss Livni from his cabinet and call new elections. In the 2015 election, Livni joined forces with Labor Party leader Isaac Herzog to create the
Tzipi Livni the UN Security Council was influenced by his talks with Livni and former president Shimon Peres, who said such a move could serve the political interests of those opposing the peace process. After the dissolution of the Knesset in December 2014, Labor leader Isaac Herzog and Livni announced a joint slate between Labor and Hatnuah, called the Zionist Union, to contest the 2015 elections in an effort to keep Netanyahu, leader of the Likud Party, from securing a fourth term as prime minister. They proposed to share the role of prime minister (an arrangement known in the Knesset as rotation)