Name: Pauline Lee Hanson
Politics: right-wing, anti-immigration.
Former occupation: fish and chip shop owner, lower house member for one term 1996-1998.
Fun fact: she's appeared on Dancing with the Stars, Who Wants to be a Millionaire and Celebrity Apprentice.
Pauline Hanson is the co-founder of One Nation and the party's leader in the senate. With four senators they're one short of having official party status.
Originally a member of the Liberal party she was disendorsed and served one term as the member for Oxley. Since 1998 Hanson has run more than 10 unsuccessful election campaigns in state and federal elections with One Nation and Pauline Hanson's United Australia Party.
She was expelled from One Nation in 2002 and served 11 weeks in jail for electoral fraud before her conviction was overturned. She rejoined the party as leader in 2013.
The party wants immigration levels limited to the number of people leaving - meaning for every person who leaves the country, one person can enter. They want each new citizen to pass an English test and immigrants to only get social security for five years.
Hanson has called for a ban on Muslim immigration to Australia, a Royal Commission into Islam, a ban on building new mosques, a ban on the burqa and other full face coverings, surveillance cameras inside mosques and Muslim schools and a reduction in temporary protection visas from three to two years.
They've floated the idea of a National Identity Card for Australians who access taxpayer funded services.
One Nation opposes same-sex marriage but the party is willing to support a plebiscite or referendum. They also want to legalise voluntary euthanasia.
Hanson has told her colleagues that if they disagree with the party, they are allowed to cross the floor.