President of Ukraine by acting president Oleksandr Turchynov, who then also served as Chairman of the Ukrainian Parliament, on 21 February 2014. Oleksandr Turchynov was the only acting president in Ukraine's modern history. Unlike in the US, where the vice president immediately receives all powers of the presidency upon assumption of the presidential office, in Ukraine the powers of an acting president are severely limited. On 18 June 2015, Yanukovych was officially deprived of the title of president of Ukraine. The current president is Petro Poroshenko who took the oath of office on 7 June 2014. The Government of Ukraine utilizes a Semi-presidential
Timeline of the Euromaidan as a result of mass disturbances". On Maidan Nezalezhnosti, Klitschko announced that he and the opposition would be soon voting on the impeachment of Viktor Yanukovych in parliament; the bill of which was registered in the previous session. In Parliament, Speaker Volodymyr Rybak submitted his resignation, citing alleged illness. Yanukovych's whereabouts were unknown despite media reports he had flown to Kharkiv. Oleksandr Turchynov stated that in fact most of the ministers had disappeared as well as Interior Minister Vitaly Zakharchenko (who is reported to have fled to Belarus) and President Viktor Yanukovych, "The only one legitimate body left is the