Labor Wins South Australian Election Emphatically Amid One Nation Surge

The story of the night is One Nation achieving an 18.8 percent swing towards it with the Liberals suffering a 17 percent swing against it. Premier of South Australia Peter Malinauskas at press conference during day one of LIV Adelaide at The Grange Golf Club in Adelaide, Australia on Feb. 12, 2026. Sarah Reed/Getty Images3/21/2026|Updated: 3/21/2026The Malinauskas Labor government has recorded a landslide win in the South Australian state election on track to win 31 of 47 seats in the state’s lower house, the House of Assembly.At this stage, the centre-left Labor Party has also picked up several centre-right Liberal seats, guaranteeing them victory at the March 21 election.