In the two-party-preferred distribution she beat sitting MP Roza Sage with 58.1% of the TPP vote, an increase of 13.5 points on the previous election.

This was the first time in its history that the seat of Blue Mountains was not won by an MP from the party that would form government after that election, breaking the bellwether status of the electorate.

[9] This is the highest result achieved by a candidate in the Blue Mountains electorate since its establishment in 1968, besting the previous record holder, Labor's Bob Debus, who received 64.8% of the vote in 2003.

Doyle was promoted to the Shadow Ministry in July 2019[10] by McKay, being given responsibility for Emergency Services, Women and the Prevention of Domestic Violence.

As was revealed in her inaugural speech to the NSW Parliament, she grew up in public housing and a home rife with poverty and domestic violence.