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
Faisal–Weizmann Agreement racial kinship and ancient bonds existing between the Arabs and the Jewish people, and realizing that the surest means of working out the consummation of their natural aspirations is through the closest possible collaboration in the development of the Arab State and Palestine, and being desirous further of confirming the good understanding which exists between them, have agreed upon the following: Articles: Given under our hand at London, England, the third day of January, one thousand nine hundred and nineteen Chaim Weizmann Feisal Ibn-Hussein Weizmann signed the agreement on behalf of the Zionist Organization, while Faisal signed on behalf of