The status of the city, and especially its holy places, remains a core issue in the Israeli–Palestinian conflict. The Israeli government has approved building plans in the Muslim Quarter of the Old City in order to expand the Jewish presence in East Jerusalem, while some Islamic leaders have made claims that Jews have no historical connection to Jerusalem, alleging that the 2,500-year-old Western Wall was constructed as part of a mosque. Palestinians regard Jerusalem as the capital of the State of Palestine, and the city's borders have been the subject of bilateral talks. A team of experts assembled by the then Israeli Prime Minister Ehud Barak in 2000 concluded that the city must be divided, since Israel had failed to achieve any of its national aims there. However, Israeli Prime Minister Benjamin Netanyahu said in 2014 that "Jerusalem will never be divided". A poll conducted in June 2013 found that 74% of Israeli Jews reject the idea of a Palestinian capital in any portion of Jerusalem, though 72% of the public regarded it as a divided city. A poll conducted by Palestinian Center for Public Opinion and American Pechter Middle East Polls for the Council on Foreign Relations, among East Jerusalem Arab residents in 2011 revealed that 39% of East Jerusalem Arab residents would prefer Israeli citizenship contrary to 31% who opted for Palestinian citizenship. According to the poll, 40% of Palestinian residents would prefer to leave their neighborhoods if they would be placed under Palestinian rule.