MK Avigdor Yitzhaki (Kadima) handed in his resignation to Knesset Speaker Dalia Itzik on Thursday morning. Yitzhaki said the reason for the move was the failure of Prime Minister Ehud Olmert to resign over the Winograd report's findings. "I'm keeping my promise to my constituents," said Yitzhaki, adding that Israel was faced with a dire "leadership crisis." Yitzhaki announced last week that he would quit the Knesset if Defense Minister Ehud Barak did not join his effort to force Olmert's departure. Yitzhaki is expected to be replaced by Shlomo Mula.