NSW Liberal candidate Hollie Hughes has had her bid to fill the Senate seat vacated by former cabinet minister Fiona Nash rejected.
The High Court on Wednesday heard Ms Hughes was a part-time member of the Administrative Appeals Tribunal from July 1 until October 27 - a day on which Ms Nash was disqualified from parliament over her dual citizenship.
Under the constitution, anyone holding an "office of profit under the crown" is ineligible to be chosen for parliament.
