This thesis aims to analyze the electoral practices of São Paulo's politicians at the beginning of the Third Brazilian Republic (1946Republic ( -1964, having as a landmark the first term of Adhemar de Barros, from the PSP, as governor. The research has as a theoretical reference the new approaches regarding the period, which considers the 19 years between the election of Eurico Gaspar Dutra in December 1945 and the military coup of 1964 as the country's first democratic experience, without any election options competitive for most political positions, especially that of President of the Republic. The look at the case of São Paulo is justified by two factors: first, São Paulo in 1947 did not elect a politician from the country's biggest parties (UDN and PSD), like other states. In this, both were defeated by a politician and a party of regional expression that, from São Paulo, projected itself nationally. The second point is that the case of Adhemar de Barros is not perfectly explained either by the thesis of populismwhich highlights the direct relationship of the politician with his electorate -nor by the practice of "making voters"in which parties enlist, gather and maintain their voters, even taking care of and taking them to the polling place. This research, in turn, highlights the network of actors, especially the political leaders from the countryside, who orbited around the governor and his party and began to compose his political machine after the 1947 election and access to state resources. For this, the research makes use of a bibliographic review about the period, as well as about the figure of the local political leader, an analysis of the data related to the elections of the time, made available by the Electoral Bulletins of the São Paulo's TRE and a documentary analysis of the newspapers of the time, which narrate the comings and goings of agreements between the parties of the Third Republic. Finally, the work wants to contribute to the debate on democratization.