[2] Following a large 19 percent two-party swing, Barry Urban was the first ever Labor candidate to be elected to the previously safe Liberal seat of Darling Range in the seat's 64 year history at the landslide state election in March 2017.

In November 2017, Urban resigned from Labor and moved to the crossbench to sit as an independent, after questions were raised about his academic claims and his wearing an overseas police service medal he had not been awarded.

Urban was referred to the procedures and privileges committee, which in May 2018 recommended his expulsion from the Legislative Assembly for contempt of parliament and misleading the House.

However, on 24 May 2018, Yates announced that she would withdraw from the race, after reporters discovered that she had incorrectly claimed multiple university degrees which she had never obtained on her LinkedIn profile.

[4] Ninety-two minutes after polling booths closed, the Australian Broadcasting Corporation's Antony Green called the by-election for the Liberals.