What is alessandro vieira?

As an AI language model, I don't have information about all the individuals in the world. However, I can tell you that Alessandro Vieira is a Brazilian politician, lawyer, and federal senator. He was elected to the Brazilian Senate in 2018, representing the state of Santa Catarina. Vieira is known for his work on anti-corruption measures and has been an advocate for transparency and accountability in Brazilian politics. Prior to his election as senator, Vieira worked as a federal prosecutor in Brazil and was involved in several high-profile corruption cases.