[3] In 2022, he ran in the state elections in Mato Grosso do Sul as a candidate for governor with José Carlos Barbosa (also known as Barbosinha) as his running mate on his gubernatorial ticket.

[6] To coordinate and manage this project, Governor Reinaldo Azambuja appointed in July 2021, Riedel as president of the Steering Committee of the Health and Safety Program for the Economy.

[8][9][10][11] On October 30, 2022 he defeated Contar after obtaining 808,210 votes (56.90%) and was elected as the governor of Mato Grosso do Sul, succeeding Reinaldo Azambuja.

[16] In a live broadcast on August 5, 2020, Riedel had taken a position against the judicial request made by the Public Defender's Office , for a lockdown to be determined in Campo Grande during the COVID-19 pandemic.

[3] Riedel also highlighted in his speech that "the greatest enemy in the pandemic is the loss of common sense and the ability to dialogue and articulate direct and concrete actions, even if they do not converge", following up with a criticism of the Public Defender's Office.

When we start to think that a magistrate's pen can provide the solution, covid-19 is taking a step forward in terms of the consequences for people's lives and the economy", he concluded.At one point, the secretary adopted a confused speech by stating that the statement that the State Government defends the lockdown is a mistake, since there was only an orientation to paralyze only activities considered non-essential at the time.