Attorney-General George Brandis and Education Minister Simon Birmingham, along with Liberal senator Dean Smith, are on the floor to watch.
"The majority of Australians voted 'yes'," Mr Entsch says, adding "they did not vote for a new form of discrimination".
Mr Entsch is surrounded by his "kindred spirits", Trent Zimmerman, Trevor Evans and Tim Wilson, and notes the last time he wore his rainbow tie was for Mr Zimmerman's first speech.
Mr Entsch says although he was very unhappy with the idea of a postal survey it has turned out to be an excellent thing because of the "extraordinary turn out" which delivered "one of the greatest mandates in in Australian political history".
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