Tyumansi has a unitary state with a semi-president republic. Formed in 1993, based on the counstitution, which was written after independence from the Soviet Union. The current president is Sergio Angasta and current prime minister is Aleksander Petrov. The bicameral parliament is divided into houses: Councilors and Representatives. Tyumansi is divided into 5 federal districts, which is subdivided into 46 federal subjects. There are 22 republics, 17 oblasts, 3 krais, 2 autonomous okrugs, and 2 federal cities.