2012 Kadima leadership election would offer her a position if he was prime minister. Citing his four decades of military service and participation in four wars, he said that he would "make the utmost effort to achieve peace with [Israel's] neighbors". He also said that non-participation in the military service was a growing problem and that Israel must reform its system of governance. Previously in support of unity, Mofaz declined to join a Netanyahu government. He was confident that he could change the course of Kadima and take it to victory. Livni picked up the endorsements of 12 MKs and two party functionaries, while
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)