Jo Siejka, nominated by the Australian Labor Party, was first elected to the seat of Pembroke at a 2017 by-election following the resignation Vanessa Goodwin who had been diagnosed with multiple brain tumours in March of that year, defeating her Liberal opponent by 7.4% in the two-party preferred count.[2][3] Siejka, who was Leader of the Opposition in the Legislative Council and held the shadow portfolios of disability, ageing and veterans, announced that she would resign before the expiry of her electoral mandate, in order to spend more time with her family.[1]
