Tzippi Livni was the chief architect of the Resolution 1701 which ended the Lebanon war. She listed that as one of her big achievements. It was great that the UN was involved. Yet, as time passed, it became patently clear that it was a disaster (see Security Council resolution 1701 has completely failed).
She still refuses to admit it however, it is interesting to see her stance this time towards the UN. Now, she is adamantly opposed to any UN resolution regarding the Gaza conflict. If she were a different type of politician as she claims she would admit her mistake.
In any case, she failed again as the UN passed a completely one sided cease fire resolution against Israel.