In South Australia One Nation has put meat on the bones of its polling surge – now both major parties need to respond

The SA election result is devastating for the Liberals, but there are warning signs for Labor too in One Nation's startling rise, which has rocked Australian politics

Labor secures overwhelming victory in SA election

Rarely - perhaps never - has the winner of an election felt more like a subplot to a bigger and more consequential narrative than in South Australia on Saturday night.

The ABC called the result for Peter Malinauskas and his Labor government less than 90 minutes after the polls closed, validating the opinion polls that had long forecast a landslide victory.