She won the seat of Longman in 2016 from the LNP’s Wyatt Roy on preferences (mostly from PHON) but was caught up in the dual-citizenship debacle due to her inheriting UK citizenship from her father. After Katy Gallagher was ruled ineligible to sit in the Senate, Lamb had to announce her resignation. Her chances of retaining the seat are, according to recent polling, improbable, given the Two-Party Preferred vote favouring the LNP to win on preferences.