TEL AVIV - APRIL 16: (ISRAEL-OUT)  In this handout photo provided by the U.S. Embassy in Tel Aviv, Senator George Mitchell (2nd L), Special Envoy for Middle East Peace, meets with Israeli opposition leader Tzipi Livni (R) on April 16, 2009 in Tel Aviv, Israel. Mitchell emphasized the US position that a two-state solution was needed to resolve the Israeli-Palestinian conflict. Getty Images logo Getty Images 6 months ago

TEL AVIV - APRIL 16: (ISRAEL-OUT) In this handout photo provided by the U.S. Embassy in Tel Aviv, Senator George Mitchell (2nd L), Special Envoy for Middle East Peace, meets with Israeli opposition leader Tzipi Livni (R) on April 16, 2009 in Tel Aviv, Israel. Mitchell emphasized the US position that a two-state solution was needed to resolve the Israeli-Palestinian conflict.