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 take over in Petrograd. Tsarist Russia had been very anti-Semitic but incongruously this made the British government even more determined to help the Jews. Nahum Sokolow acted as Weizmann's eyes and ears in Paris on a diplomatic mission; an Entente under the Ottoman Empire was unsettling. The Triple Entente of Arab-Armenian-Zionist was fantastic to Weizmann leaving him cold and unenthusiastic. Nonetheless the delegation left for Paris on 31 March 1917. One purpose of the Alliance was to strengthen the hand of Zionism in USA. Weizmann's relations with Balfour were intellectual and academic. He was genuinely overjoyed to convince the former