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 first time in history, there is a community alike of interest and of sentiment between the British State and Jewish people." The Manchester Zionists published a pamphlet "Palestine" on 26 January 1917, which did not reflect British policy, but already Sykes looked to Weizmann's leadership when they met on 20 March 1917. On 6 February 1917 a meeting was held at Dr Moses Gaster's house with Weizmann to discuss the results of the Picot convention in Paris. Sokolow and Weizmann pressed on with seizing leadership from Gaster; they had official recognition from the British government. At 6 Buckingham Gate on