Builds his home in Rehovot next to the Sieff Institute. The house is planned by the well-known Jewish architect Erich Mendelsohn. In the wake of the Arab riots, the British Government sends a commission of inquiry headed by Lord Peel. Weizmann testifies before the royal commission on December 25, 1936, stating, “When speaking about the Jewish nation, one is speaking about a nation that is a minority everywhere but is not a majority anywhere…It has the spirit of a nation without a body, and it therefore arouses suspicion, and suspicion gives birth to hatred.

Re-appointed to the position of President of the World Zionist Organization and the Jewish Agency at the Nineteenth Zionist Congress in Lucerne, together with the appointment of Ben-Gurion as Chairman of the Executive of the Jewish Agency.

Establishes the Daniel Sieff Research Institute in Rehovot.

Appointed chairman of the central office of the agency for settling the Jews of Germany in the Palestine.

Weizmann is removed from his position as the head of the Zionist movement. He devotes his time to scientific research, as well as fundraising for Zionist projects and working to save Jewish refugees, primarily from Germany.

In a letter to Lord Passfield dated October 20, 1930, Weizmann writes, “For the last twelve years, I have stood at the head of the World Zionist Organization and the Jewish Agency. Throughout this entire period, I have tried to work in close harmony with His Majesty’s Government and to base my actions on close cooperation with them.

Elected President of the expanded Jewish Agency for Palestine, established in order to involve Western Jews in the Zionist enterprise. “Our ideal was the vision of a new nation, free of the restrictive confines of the ghetto and from the eternal fear of misunderstandings and disturbances, living its life on its land—a nation of upright people, with an awareness of the great historic heritage connected to the Nation of Israel and the earth of the Palestine” (on the day of the establishment of the expanded Jewish Agency, November 8, 1929). 

Participates in a ceremony marking the opening of the Hebrew University, with the participation of Lord Balfour.

Tours the U.S. with Albert Einstein, with the goal of fundraising on behalf of the Zionist enterprise.

Elected to serve as the President of the World Zionist Organization in the London conference.