sentences:  He was re-elected and remained speaker in both the second and third Knessets.As part of his role as speaker, Sprinzak became acting President of Israel when Chaim Weizmann fell ill from 12 December 1951.After Weizmann's death on 9 November 1952 Sprinzak served as interim President until inauguration of Yitzhak Ben-Zvi on 10 December 1952.