"Obviously I will be voting no", Abbott said. "If you don't like same-sex marriage, vote "no", he told reporters.
"When you know the Australian people don't agree with you, you try to deceive them about what the issue is", Mr Brady said. "If you are anxious about religious freedom and freedom of speech, vote "no".
The legalisation of same-sex marriage is inevitable.
A postal plebiscite is the only credible pathway forward to resolve same-sex marriage legislation, according to Federal Member for Gippsland Darren Chester. Turnbull had said if the plebiscite bill failed, then he would move ahead with the vote-by-mail option.
Mr Chester previously told The Express he believed a compulsory attendance national plebiscite was the fairest way to resolve the issue and was disappointed Labor and the Greens voted against it.
Speaking in Parliament on Wednesday, Wilkie said it was frightening that the government was attempting to "bypass the Parliament and somehow authorise the expenditure of more than 100 million Australian dollars of taxpayer funds".
If approved by the Senate, the plebiscite would take place on November 25.
Australia House, where more than 15,000 ballots were cast in the 2013 election, has had a "handful of inquiries" from Australians asking how they can cast their vote in the same-sex marriage plebiscite, says Prue Loney, communications adviser for the Australian high commission.
"We will argue that the government is overstepping its rights by organizing the operation without the approval of Parliament", declares the leader of this group, Jonathon Hunyor.
There's also been a 17 percent increase in the number of new enrolments since the plebiscite was confirmed, compared to the previous week.
"At the end of the day, this is simply about all Australians being equal before the law, it's about mutual respect".
"What we didn't want to happen in 2004 was for the courts to start adjudicating on the definition of marriage".
In campaigns, leading members of the Liberal Party had pledged to gauge public opinion before a vote occurred, even though existing polls show a major of Australians are in favor of same-sex marriage.
"I am disappointed for hundreds of thousands of Australians that their Prime Minister has once again let them down".
"We're going to see another situation like Ireland where you saw tens of millions in overseas money coming in to influence the debate".
Meanwhile, former Prime Minister Tony Abbott's sister Christine Forster has hit back at his call for the public to vote "No" to protect religious freedoms and "stop political correctness in its tracks".
The major problem with the mail-ordered change to the Marriage Act is that the process would be meaningless.
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