sentences:  Following the cabinet formation of 1959 Zijlstra remained as Minister of Finance in the Cabinet De Quay, taking office on 16 May 1959.On 26 May 1959 Zijlstra announced that he was stepping down as Leader once again in favor of Parliamentary leader Bruins Slot.In September 1962 Zijlstra announced that he wouldn't not stand for the election of 1963 but wanted run for the Senate.