How NSW got a new Premier

If you blinked on Friday you might have missed Gladys Berejiklian's resignation. The NSW Premier made the sudden announcement within an hour of news breaking that she'd be the subject of a corruption investigation. So what are the tricky questions Gladys Berejiklian still has to answer? And what do we know so far about her anointed successor, Dominic Perrottet? Featured: Kathleen Calderwood, Reporter, ABC News Sydney Sean Rubinsztein-Dunlop, Investigative Reporter, ABC News