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 non-interventionist position. Weizmann consulted several times with Samuel on the homeland policy during 1915, but H. H. Asquith, then Prime Minister, would be dead set against upsetting the balance of power on the Middle East. Attitudes were changing to "dithyrambic" opposition; but in the Cabinet, to the Samuel Memorandum, it remained implacably opposed with the exception of Lloyd George, an outspoken radical. Edwin Montagu, for example, Samuel's cousin was strenuously opposed. Weizmann did not attend the meeting of Jewry's ruling Conjoint Committee when it met the Zionist leadership on 14 April 1915. Yehiel Tschlenow had travelled from Berlin to speak