Sometimes in election campaigns people start to question why politicians spend so much time in NSW. There's an obvious answer to that which is the size of its population. This year the focus will be on NSW like never before.

As James Robertson reports, more than half of the Coalition's most vulnerable seats - those with a margin of four per cent or less - are in NSW.

Richard Willingham looks at what could happen in Victoria, a state that never really warmed to former prime minister Tony Abbott.