The last election was in 2005. Future elections have been "postponed indefinitely" by current president 

https://en.wikipedia.org/wiki/Next_Palestinian_presidential_election

Must be recognized internationally as a valid and fair election for the leadership of the State of Palestine (particularly by the UN and leaders of western nations).

Doesn't necessarily need to be called a "presidential election".

Disqualifying some potential candidates (Like Hamas) is ok.

This market will be resolved according to the spirit of the question if there is ambiguity. 