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 Jewish Agency pledged its support for the British war effort against Nazi Germany. They raised the Jewish Brigade into the British Army, which took years to come to fruition. It authenticated the news of the Holocaust reaching the allies. In May 1942, the Zionists met at Biltmore Hotel in New York, US; a convention at which Weizmann pressed for a policy of unrestricted immigration into Palestine. A Jewish Commonwealth needed to be established, and latterly Churchill revived his backing for this project. Weizmann met Churchill on 4 November 1944 to urgently discuss the future of Palestine. Churchill agreed that Partition