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
Oleksandr Turchynov he worked at Kryvorizhstal, a large Ukrainian steel producer. From 1987 to 1990, he served as head of the agitation and propaganda division of the Dnipropetrovsk Oblast Komsomol (Communist Youth League) Committee, which was led by Serhiy Tihipko. Tihipko and Turchynov became political advisers of Leonid Kuchma, then head of Dnipropetrovsk-based Pivdenmash missile manufacturer. Kuchma and his entire team, including Tihipko and Turchynov moved to Kiev in 1992, after Kuchma was appointed Prime Minister. In 1993 Turchynov was formally appointed an advisor on economic issues to Prime Minister Kuchma. Turchynov is an old ally of Yulia Tymoshenko, another prominent Ukrainian