The tectonic plates of South Australian politics have fundamentally shifted. Peter Malinauskas’s Labor government has won a second term with a landslide win. The final count should see Labor win around 33 seats in the 47 seat House of Assembly. This result dwarfs the Labor “Rann-slide” of 2006.

The SA Liberals suffered a humiliating and record loss, reduced to single digits, with perhaps as few as six seats in the lower house. The party will need to undergo a significant rebuild if it is to become competitive again.

Read more: Labor easily wins South Australian election with One Nation beating Liberals into second on primary votes

The key story of the night was the insurgency of One Nation. The right-wing populist party has secured a higher primary vote than the Liberals, with a statewide total of 22% against the Liberals’ 19%.

In regional areas and One Nation’s target seats, the party came first in the primary vote count, and in the seat of Narungga secured 37% of the primary vote. With unpredictable preference flows, the party could secure two lower house seats.

Labor’s landslide came off the back of the Liberal collapse. Labor easily won a suite of metropolitan and suburban seats such as Colton, Morialta, and Hartley, the latter of........

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