Queensland senator Fraser Anning joined the federal parliament after his One Nation colleague Malcolm Roberts was found ineligible to have been elected.
HOW DID FRASER ANNING GET INTO THE SENATE?
HOW MANY VOTES DID HE RECEIVE?
As a One Nation candidate in Queensland, Anning received 19 personal votes at the 2016 federal election.
He wasn't initially elected. Of the 126 Queensland candidates, only the Palmer United Party's Craig Gunnis earned fewer votes, with 18.
One Nation won two seats in the senate mainly due to "above the line" votes - leader Pauline Hanson claimed 20,927 votes and Malcolm Roberts 77.
ANNING'S ELEVATION INTO THE SENATE
In October 2017, the High Court rules Roberts was ineligible to have been elected because of his dual British citizenship.
After a recount, Anning - originally third on the One Nation ticket but now deemed second - is elected.
After being sworn in, Anning revealed he quit One Nation hours earlier after a falling-out with Hanson.
KATTER'S AUSTRALIAN PARTY
In June 2018, Anning joins Katter's Australian Party, headed by Queensland maverick Bob Katter.
Nine months after joining the Senate, Anning gives his first speech and uses the Nazi phrase "final solution" in reference to Muslim immigration. Katter supports him.
Katter boots Anning out of his party in October after he called for a return to White Australia policies. Anning continues to sit in the Senate as an independent.
Anning will face voters at the next election, due mid-May, because he only holds a three-year term backdated to the 2016 poll.