Antony Green's guide to election night

Millions of Australians will head to the ballot box tomorrow, where they could deliver Scott Morrison a second 'miracle' victory, or this time prove opinion polling right and vote in Anthony Albanese.  The ABC's election analyst, Antony Green, is usually the first person to call the election result on the night.  So how does he do it? Featured:  Antony Green, ABC chief elections analyst