The President of Turkey, who serves as the country's head of state and government, is directly elected through the two-round system, under which a candidate must obtain an absolute majority of votes in order to be elected. If no candidate secures an overall majority outright, a runoff is held between the two most voted-for candidates from the first round, the winner of which is then declared elected. This electoral system was first introduced for the 2014 presidential elections, when it replaced a system of indirect elections under which the president was elected by parliament. The president is subject to term limits, and may serve two times at five-year terms. Some jurists and opposition politicians said that since Erdoğan was elected two times, if Turkish parliament doesn't decide to snap election, he will be no candidate again. The rule for the president to serve a maximum limit of two terms was introduced in the 2007 constitutional referendum, but this rule wasn't changed in the 2017 constitutional referendum. With the 2017 constitutional referendum, the right to decide snap election were given to the president and 3/5 of the total number of MPs on Turkish parliament (at least 360 MPs). According to constitution if the parliament decides for snap elections in the second term of the president, the president will be a candidate again. However, it has been speculated that incumbent president Recep Tayyip Erdoğan could be eligible to seek a third term in 2023, since the current executive presidential system was only fully implemented after the conclusion of his first term in office, meaning that his period in power from 2014 to 2018 would not count towards his two-term limit according to some jurists.