Brazilian elections are held to choose representatives at various levels, including the President, members of the National Congress, and state governors. The elections occur every four years, with the President elected through a two-round system if no candidate receives more than 50% of the votes in the first round. The electoral process is overseen by the Tribunal Superior Eleitoral (TSE), which ensures fair practices and transparency. Voter participation is mandatory for citizens aged 18 to 70, while those aged 16 to 17 can vote voluntarily. The elections are a crucial aspect of Brazil's democratic system.