Aldo Moro held a prominent position within the Apulian Catholic movement and, in a way, at national level: in 1943 he was among the drafters of the Code of Camaldoli, and between 1945 and 1946 he chaired the Movement of graduate Catholic students. In 1945 he joined the DC. Supported by the Church and by archbishop Mimmi, he run for the Constituent assembly during the elections of June 2, 1946 in the constituency Bari-Foggia, where DC turned out to be the first party (31.8%) and sent 7 deputies to Rome; Moro came second after Raffaele Pio Petrilli.
A member of the leadership of the parliamentary group (he became vice-president in 1947), Moro joined the Constitutional Commission (the so-called Commissione dei 75), and later the first sub-commission on rights and obligations. Moro constantly attended the works of the Constituent: alone and together with other DC deputies (mainly Giuseppe Dossetti) he shared in the discussion which resulted in what he would call the “happy convergence of positions” which strengthens the Constitution of the Republic.
Tre pilastri della democrazia, discorso alla Costituente, 13 marzo 1947
