[3] Sudmalis served as a councillor on the Kiama Council and worked as an advisor to Joanna Gash, the member for Gilmore between 1996 and 2013.
At the 2007 New South Wales state election, Sudmalis contested the seat of Kiama, running unsuccessfully against Labor incumbent Matt Brown.
Sudmalis released an open letter to Mark Scott declaring his decision "appalling", "deplorable" and that he was "taking the easy way out" by allowing the Nowra branch to be closed and not targeting more cuts to metropolitan areas.
A survey that Sudmalis sent to her own mailing list resulted in 1552 community members in support of marriage equality versus 893 opposing it.
[18] Following the decision of the Australian Fair Work Commission to reduce penalty rates of hospitality, retail, fast-food and pharmacy workers, Sudmalis described the change as a "gift" to young people, prompting a sustained attack from the Opposition in question time.
[23] However, Prime Minister Malcolm Turnbull, treasurer Scott Morrison, and other senior Liberal party members, personally intervened to ensure Sudmalis was preselected for the next election.
[24] Despite that, she announced on 17 September 2018 that she would not contest the coming election, blaming what she called ego-driven bullying, betrayal and backstabbing by Gareth Ward, a Liberal member of state parliament for an electorate that overlaps hers.