Under Fiala's leadership, Spolu formed a coalition agreement with the Pirates and Mayors alliance, with a majority of 108 of 200 seats. He was appointed Prime Minister by President Miloš Zeman on 28 November 2021 and Petr Fiala's Cabinet took power on 17 December 2021, making him the third oldest person to hold the office, as well as the first with a political science background and the first from Brno.
