A strong evidence of the effective task made by the Socialist administrations during the 20s are the successive electoral victories the party won with a percentage surpassing the 50%, all that in coexistence with politically adverse provincial and national governments. Bronzini was also nominated provincial commissioner for the period 1921-22, 1925–28 and 1930 until the military coup of 6 September 1930. It is possible to argue that the double provincial and local charges intended to offer legislative immunity as a protection to the municipal autonomy.