How did pollsters get the Australian election result so wrong?

Polling companies will be doing some major self-reflection in the aftermath of the Australian Coalition’s surprise victory last weekend

Source:
https://www.newscientist.com/article/2203837-how-did-pollsters-get-the-australian-election-result-so-wrong/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home