The immediate backdrop is a region reshaped by the March 2026 US–Israel military campaign against Iran and the wider geopolitical disruption that followed, which intensified migration pressures and economic uncertainty across the Asia‑Pacific before Australia’s current campaign trended toward immigration.
Structurally, Australia’s Migration Act 1958 and its obligations under the 1951 UN Refugee Convention (and 1967 Protocol) have long framed who may seek protection, while the 2013 Coalition policy "Operation Sovereign Borders" instituted offshore processing and maritime turnbacks to stop boat arrivals after a string of deadly people‑smuggling voyages.
The Sydney Morning Herald reports that Labor, the Coalition and One Nation have turned immigration into the central battleground of Australia's election campaign, making a policy area usually described as an economic success story the defining political fight (per smh.com.au).
The Herald's updated analysis — first published on September 17, 2026 and revised on September 18, 2026 — traces how competing party messages and electoral tactics elevated migration from technical policy debate to headline issue (per smh.com.au).
Each party frames the stakes in its own terms: the Herald describes Labor as defending the record and arguing management of migration underpins economic growth; it portrays the Coalition and One Nation as pressing for tougher measures and politicising border and settlement questions to win voters (per smh.com.au).
The paper emphasizes that this is an analysis explaining process and cause rather than new reporting of a discrete event, so claims about motives and likely voter reactions are presented as interpretation grounded in campaign developments (per smh.com.au).
Why now, the Herald suggests, is a function of political calculation — parties see electoral advantage in reframing migration debates ahead of voting — and the update signals ongoing shifts in messaging across the main parties as the campaign progresses (per smh.com.au).
Readers should note the story is an explanatory piece by the Herald and does not itself present new polling or official party announcements beyond describing the competing positions and their political effects (per smh.com.au).