Chaim Weizmann institute was a global success attracting scientists from all over the Diaspora. In 1949 there were 20 researchers, twenty years later there were 400 and 500 students. The Honourable Chaim Weizmann met with United States President Harry Truman and worked to obtain the support of the United States, they discussed emigration, for the establishment of the State of Israel. The President lived at Rehovot, where he regularly received the Prime Minister David Ben-Gurion into his garden. He was denied any actualisation of the political role he had hoped for by the Left. He had to be consoled with the Weizmann
Chaim Weizmann disputes between the two figures. During the war years, Brandeis headed the precursor of the Zionist Organization of America, leading fund-raising for Jews trapped in Europe and Palestine). In early October 1914 the "USS North Carolina" arrived in Jaffa harbor with money and supplies provided by Schiff, the American Jewish Committee, and the Provisional Executive Committee for General Zionist Affairs, then acting for the WZO, which had been rendered impotent by the war. Although Weizmann retained Zionist leadership, the clash led to a departure from Louis Brandeis's movement. By 1929, there were about 18,000 members remaining in the ZOA, a