Respuesta :
As the incumbent mayor (because they are currently holding office)
The answer is: incumbent.
The word incumbent is used when referring to a person that is currently holding an office —like the office of the Mayor, or a senator, or the President— that imply certain duties and tasks to which the person holding that office can be held accountable. The word can also be used for someone that occupies a certain position in general, that is to say, it does not necessarily have to be someone elected by a constituency.