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 is my rule of politics." In spite of his claim, on 22 September 2007, during 2007 Ukrainian Parliamentary Election campaign, while delivering a speech in Vinnytsia, he compared Yulia Tymoshenko's performance as Prime Minister to "a cow on the ice" (" Вона прем'єр-міністр, як корова на льду...", "She is as prime minister as a cow on the ice") most likely referring to her skills and professionalism as a prime minister. Other cases of strong colloquialisms used by Viktor Yanukovych include the incident when he called former president Viktor Yushchenko "a coward and a babbler", as well as the speech in