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
Weizmann House the Weizmanns were able to take residence in January 1937. The final sum after negotiations and construction was £14,832 6s 8d. Though this house was designed for the Weizmanns, they lived there after the Second World War, several years after it was ready for them. When the Weizmanns were not home the house was lived in by visiting world leaders, luminaries, and guests. After the house was completed some difficulties between the architect and clients continued: Chaim Weizmann was displeased with Mendelsohn over imperfections in the building such as dampness in the winter, and Vera Weizmann chose her own interior