Pavolini was integrated into the Republic's administration under Mussolini, and was immediately promoted head of the successor of the PNF, the Republican Fascist Party (PFR) (the only person to occupy that post); he took part in the drafting of major documents, including the Verona manifesto that called for the execution of former Grand Council of Fascism members who had voted against Mussolini in April, and was behind the creation of the Black Brigades.