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
Viktor Yanukovych with them. On 15 December 1967, at the age of 17, Yanukovych was sentenced to three years incarceration for participating in a robbery and assault. On 8 June 1970 he was convicted for a second time on charges of assault. He was sentenced to two years of imprisonment and did not appeal against the verdict. Decades later, Yanukovych characterized his arrests and incarceration as "mistakes of youth". In 1971, Yanukovych married Lyudmyla (née Nastenko), a niece of Yenakiyeve city judge Oleksandr Sazhyn. In July 1974, Yanukovych enrolled at the Donetsk Polytechnic Institute. In 1976, as a second-year student, he was