in an election what is the person who already holds an office
Incumbent The incumbent is the current holder of a political office. This term is usually used in reference to elections, in which races can often be defined as being between an incumbent and non-incumbent(s). For example, in the Hungarian presidential election, 2017, János Áder was the incumbent, because he had been the president in the term before the term for which the election sought to determine the president. A race without an incumbent is referred to as an open seat.