Tzipi Livni overseeing Israel's diplomatic relations with the United States and Europe, with Foreign Minister Avigdor Liberman playing a lesser role. Livni led the Israeli negotiation team in the peace talks, brokered by U.S. Secretary of State John Kerry and Middle East envoy Martin Indyk from July 2013 until April 2014. Upon announcing the resumption of talks between Israel and the Palestinians at a press conference delivered at the U.S. State Department, Livni criticized the "cynicism and pessimism" surrounding Israeli–Palestinian peace process, and expressed hope that the negotiators would do everything in their power to transform a "spark of hope into something
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)