If re-elected, the government plans to hold a plebiscite on same-sex marriage as soon as practicable after the election. However, even if the plebiscite is successful, it will also require a parliamentary vote to legalise same-sex marriage.

On Friday, Turnbull confirmed that regardless of how the Australian people vote on same-sex marriage, no Coalition MP will be bound by the result of the plebiscite.

"The tradition in the Liberal Party is that on matters of this kind it is a free vote," Turnbull said.

"I have no doubt that if the plebiscite is carried, as I believe it will be, that you will see an overwhelming majority of MPs and senators voting for it," he said.



He gave the example of Scott Morrison as a cabinet MP who opposes same-sex marriage but will vote based on the result of the plebiscite.

Scott Morrison confirmed to BuzzFeed News he would respect the results of a marriage plebiscite.