Senators Penny Wong and Cory Bernardi will lock horns over marriage equality at a National Press Club debate on July 29.
The pair could not hold more different views on the issue.
Wong, the leader of the opposition in the senate, is stridently in favour of the reform, and backbench senator Bernardi has previously argued marriage equality could lead to bestiality.
Wong, who has two children with her partner, Sophie Allouache, recently told the ABC that the arguments from marriage equality opponents denigrate families like her own.
"I find it sad that senior politicians in this country seem to want to tell my children and children of other same-sex couples that somehow they're not normal," she said.
Bernardi is a strong believer in the definition of marriage as between a man and a woman, saying "a man and a woman are complementary" in the raising of children.
"It's not that we don't like homosexuals," he told BuzzFeed News earlier this year. "It's just that we don't want to see a word re-defined. I think it changes a heck of a lot in our culture."
"If you look at marriage historically over thousands of years it's been about the union of a man and a woman, with the intention of providing an environment in which to raise children."
Everyone is pretty excited to hear them go head to head.
DREAM DEBATE! Cory Bernardi will debate Penny Wong about gay marriage at the National Press Club on July 29 #auspol
One to put in your diaries: Senator Wong vs. Senator Bernardi at the National Press Club July 29. 'The Same Sex Marriage Debate' #auspol
Penny Wong to debate Cory Bernardi on marriage equality at the NPC?
Grab your popcorn. Dis gon be gud. https://t.co/O0b0DY4Thf
Vince McMahon is chairing that NPC debate between Wong and Bernardi right ??
The debate comes ahead of a cross-party marriage equality bill, expected to be introduced to the parliament in August.
Get ready, #auspol watchers.
