Question: What Australian politician defeated Nickolas Varvaris in the 2016 election?

Context paragraphs:
Anne Aly: Anne Azza Aly (born 29 March 1967) is an Australian politician, political scholar, academic and counter-terrorism expert.  She has been an Australian Labor Party member of the Australian House of Representatives since the 2016 election, representing the electorate of Cowan.

Nickolas Varvaris: Nickolas Varvaris (born 25 May 1974) is a former Australian politician.  He was the Liberal member for the House of Representatives seat of Barton between 2013 and 2016.  He recontested his seat at the 2016 election but lost to Labor's Linda Burney.

Linda Burney: Linda Jean Burney (born 25 April 1957) is an Australian politician, who was a member of the New South Wales Legislative Assembly representing Canterbury for the Australian Labor Party from 2003 to 2016, when she resigned to contest the federal seat of Barton.  Upon her election, she became the first Aboriginal person to serve in the New South Wales Parliament.  Linda Burney is also the first Aboriginal woman to be elected to the Australian House of Representatives, winning the federal seat of Barton in the 2016 federal election.

Karen McNamara: Karen Jane McNamara (born 23 April 1964) is an Australian politician.  She was a Liberal member of the Australian House of Representatives from 2013 to 2016, representing the New South Wales electorate of Dobell.  She lost her seat at the 2016 election.  She was replaced by Emma McBride who recorded a 7.6% swing to Labor.

Steve Georganas: Steven "Steve" Georganas (born 13 June 1959) is an Australian politician and is the Australian Labor Party member for the House of Representatives seat of Hindmarsh in South Australia from the 2004 election until the 2013 election.  He was re-elected at the 2016 election.

Fiona Scott: Fiona Meryl Scott (born 1 March 1977) is an Australian politician.  She was a Liberal member of the Australian House of Representatives, representing the Division of Lindsay in New South Wales from the 2013 election until the 2016 election.

Emma McBride: Emma Margaret McBride (born 27 April 1975) is an Australian politician.  She was elected as the member for Dobell in the Australian House of Representatives in the 2016 election after having been an unsuccessful candidate for the same seat in the 2013 election.

Ricky Muir: Ricky Lee Muir (born 25 December 1980) is a former Australian politician.  He was elected as a Senator for Victoria in the 2013 election, representing the Australian Motoring Enthusiast Party (AMEP).  His term began on 1 July 2014.  Muir failed to retain his seat at the 2016 election following a double dissolution which cut short his term in office.

Gai Brodtmann: Gai Marie Brodtmann (born 24 November 1963) is an Australian politician, currently serving as a member of the Australian House of Representatives for the seat of Canberra representing the Australian Labor Party.  A career public servant, diplomat and later small business owner, she succeeded Labor MP Annette Ellis, who retired from politics at the 2010 federal election.  Appointed Shadow Parliamentary Secretary for Defence following the 2013 Election, Brodtmann has been the Shadow Assistant Minister for Cyber Security and Defence in the Outer Shadow Cabinet since the 2016 election.

Louise Pratt: Louise Clare Pratt (born 18 April 1972) is an Australian politician.  She was a Labor member of the Australian Senate from July 2008 until June 2014, representing the state of Western Australia, and returned to the Senate after the 2016 election.  She had been assured of election at the 2007 federal election after winning the first position on the Labor ticket, defeating incumbent Senator Ruth Webber in a preselection contest.  Pratt previously served as a member of the Western Australian Legislative Council from 2001 to 2007.  She was the youngest woman ever elected to the Legislative Council at the time of her election, the second open lesbian to be elected to an Australian parliament, and was the first to have a transgender man as a partner.

Supporting paragraphs: Nickolas Varvaris Linda Burney
Answer: Linda Burney