Josh Frydenberg's citizenship challenged by constituent who feels 'betrayed' on climate

Kooyong resident says treasurer betrayed Australia on climate change as Gladys Liu also challenged over Chinese language signs

Josh Frydenberg's eligibility to sit in parliament has been challenged in the court of disputed returns by a constituent who says he feels "betrayed" by the Liberal party's inaction on climate change.

Michael Staindl, a resident of Kooyong, filed a petition on Wednesday alleging the treasurer and deputy Liberal leader is disqualified by section 44(1) of the constitution because he is a citizen of Hungary, which Frydenberg denies.