The new FAST party, which has the same number of seats as the caretaker HRPP party, at 26, is seeking to have the Supreme Court overturn the appointment of a sixth woman to parliament.
Last week the Office of the Electoral Commission appointed Aliimalemanu Alofa Tuaau to ensure that at least ten percent of the parliament's seats are held by women.
But FAST claims in its motion to the court, that this is a misreading of the constitution.