Are political parties mentioned or written in the Australian Constitution?
Thanks for your question.
Political parties were not mentioned in the Australian Constitution until 1977 when section 15 – which outlines how casual vacancies in the Senate are filled – was changed. While political parties are now generally mentioned, no specific party is named. Under the change, if the vacating senator represented a political party, the vacancy is filled by a member of the same political party.
The House of Representatives

DPS Auspic
Description
The House of Representatives is a large room with green furnishings. The seats are arranged in rows around a large central table. There is a large chair at the open end of the U-shaped seats that is elevated above the other chairs where the Speaker sits. Members of the House of Representatives sit in the U-shaped seats. Members of the public and the press sit observing from the balconies above the House.
Permission should be sought from DPS AUSPIC for third-party or commercial uses of this image. To contact DPS AUSPIC email: auspic@aph.gov.au or phone: 02 6277 3342.