Prior to the 1988 Israeli legislative election, Netanyahu returned to Israel and joined the Likud party. In the Likud's internal elections, Netanyahu was placed fifth on the party list. Later on he was elected as a Knesset member of the 12th Knesset, and was appointed as a deputy of the foreign minister Moshe Arens, and later on David Levy. Netanyahu and Levy did not cooperate and the rivalry between the two only intensified afterwards. During the Gulf War in early 1991, the English-fluent Netanyahu emerged as the principal spokesman for Israel in media interviews on CNN and other news outlets. During the Madrid Conference of 1991 Netanyahu was a member of the Israeli delegation headed by Prime Minister Yitzhak Shamir. After the Madrid Conference Netanyahu was appointed as Deputy Minister in the Israeli Prime Minister's Office.