text: With the end of the war in Europe Bonomi started facing more frequent criticism over his personality and actions in the pre-Fascist era, particularly from politicians who had been living underground in the occupied areas and were close to the partisan movement. Therefore, he resigned on 21 June 1945.
  After his successor Ferruccio Parri resigned in December 1945 Liberals tried to propose Bonomi as prime minister, and then again the following year as a Minister in Alcide De Gasperi's cabinet, but unsuccessfully.
  Later life
  In June 1946 he was elected to the Constituent Assembly in the list of the National Democratic Union, an alliance between the Liberal Party and the Labour Democratic Party. He chaired the Assembly's Treaties Committee. He also attended the preliminary conference for the adoption of the peace treaty with the Allies, in Paris, as a member of the Italian delegation.
  In 1948 he became a member by right of the Italian Senate. He was elected as its president, the first after the establishment of the Republic, and served in that position until his death. He joined the newly-established Italian Socialist Workers' Party (later known as the Italian Democratic Socialist Party), where he held the honorary position of president.
  He died on 20 April 1951 in Palazzo Giustiniani, Rome, the official residence of the President of the Senate, aged 77.