Yuval Zellner Party, Zellner joined Kadima in 2005. Ranked 34th on Kadima's list for the 2009 elections, he failed to win a seat, but entered the Knesset on 3 May 2012 as a replacement for Tzipi Livni, who had resigned her seat after losing the party's leadership election to Shaul Mofaz. Placed sixth on the Kadima list for the 2013 elections, he lost his seat when the party was reduced to two MKs. However, he returned to the Knesset on 18 December 2014 following Yisrael Hasson's resignation and other resignations from the party list. The party did not contest the 2015 elections,
2008 Kadima leadership election count turned out much closer, amid very low turnout, with Shaul Mofaz coming within a few hundred votes of winning an unexpected victory over Livni. Supporters of Mofaz called for a recount but Mofaz rejected any legal challenge of the declared result and called Livni to congratulate her on her victory, as did Sheetrit and Dichter. After Mofaz's loss, he announced that he would be taking a break from politics and leaving the government and Knesset. However, he would remain a member of Kadima. Soon after, however, he announced his return and won the 2nd place in Kadima's Knesset list