* Born September 17, 1979 (age 41)

* Studied at Princeton University (US)

* Married with three children

* Joined the ALP at 18 and became the president of NSW Young Labor

* Former deputy mayor of Hurstville City Council

* Elected member for Kogarah in Sydney's south in 2015 and became opposition water spokesman in 2016

* Ran in 2018 for the NSW Labor leadership, losing to Michael Daley, who led Labor to defeat in the 2019 state election

* Contested and lost to Jodi McKay in the 2019 leadership ballot, but became NSW Labor transport spokesman

* Resigned his front bench position last week after a purported "dirt file" was circulated to the media by the office of NSW Labor deputy leader Yasmin Catley

* Said after his resignation that NSW Labor had been too "negative" amid the COVID-19 pandemic and needed to more closely address voter concerns, rather than solely criticising the coalition government

* Did not publicly challenge Ms McKay's leadership before her resignation last Friday but this week expressed his intention to run for the NSW Labor leadership again

* Was elected unanimously as NSW Labor leader on Friday after Mr Daley withdrew his candidacy for the leadership.

Australian Associated Press