Peter Malinauskas: How SA Premier Built Unprecedented Labor Power

South Australian Premier Peter Malinauskas has secured a resounding victory in the state election held on Saturday, March 21, 2026, leading Labor to what is being described as its largest win in South Australian electoral history. The result positions Malinauskas as a dominant force in state politics, with Labor on track to claim over 31 seats in the lower house, significantly strengthening its majority.

The scale of the win, confirmed by the Australian Broadcasting Corporation (ABC) and 7NEWS, comes after a first term marked by both bold decisions and calculated risks. Malinauskas’s Labor government navigated a cost-of-living crisis while undertaking significant infrastructure projects and making difficult choices regarding key industries.

Among the contentious decisions during his first term was a decision to raise water bills by an average of $80 per year to fund new housing infrastructure. He too oversaw the administration of the Whyalla steelworks, committing substantial funds to its continued operation, despite a prior election promise to build a hydrogen power plant. The government authorized the demolition of a state heritage-listed site to make way for a new Women’s and Children’s Hospital, a project now estimated to cost $3.2 billion.

The government also committed an additional $5.5 billion to the upgrade of South Road, a major transport artery, a move that increased state debt, projected to approach $50 billion by the end of the decade. These decisions, while carrying political risk, appear to have been rewarded by voters.

The election outcome has reshaped the political landscape in South Australia, leaving the opposition in a fragmented state. The Liberal Party suffered a significant collapse in support, while One Nation achieved its best electoral result in the state in nearly 30 years, polling over 21 percent of the vote, surpassing the Liberals’ approximately 19 percent. This surge in support for One Nation, as noted by the ABC’s chief election analyst Casey Briggs, represents a significant shift in the state’s political dynamics.

Malinauskas, speaking after the election result, emphasized a commitment to continued hard perform. “It’s obviously an extraordinary privilege,” he said. “It’s been the privilege of my life outside of having such a gorgeous family and I’m just looking forward to be able to continue the work going, keeping the momentum of South Australia.” He cautioned against interpreting the victory as “adulation,” framing it instead as a mandate to continue serving the state.

The premier’s position within the Labor Party is currently unchallenged, with no clear successor emerging following the departures of former Treasurer Stephen Mullighan and Deputy Premier Susan Close last year. This internal stability, coupled with the substantial parliamentary majority, positions Malinauskas to potentially surpass Don Dunstan, John Bannon, and Mike Rann – all of whom served nine years as premier – as Labor’s longest-serving leader in South Australia.

Adelaide University emeritus professor of politics Clem MacIntyre noted Malinauskas’s potential place in Labor history, stating that while Dunstan remains an inspirational figure, “Malinauskas sits very comfortably with the others, there’s no doubt about that.”

Maintaining internal discipline within the Labor caucus has been a hallmark of Malinauskas’s leadership. Despite facing potentially divisive issues, such as his intervention regarding author Randa Abdel-Fattah and the cancellation of Adelaide Writers’ Week, and a crackdown on disruptive protests, public displays of dissent from Labor MPs have been minimal. A former staffer emphasized the importance of this unity, stating that the premier’s “investment of political capital…can only be achieved if you’ve got a united team behind you.”

The enlarged Labor backbench and limited cabinet positions may present challenges to maintaining this discipline in the future. The experience of Mike Rann, who enjoyed a landslide victory in 2006 only to be replaced five years later, serves as a cautionary tale, with Malinauskas himself playing a role in delivering that news as a union leader at the time.