PRIME Minister Malcolm Turnbull has been labelled the most “radically leftist” leader Australia has ever had by former Labor leader Mark Latham.

The comments were made at the launch of Mr Latham’s new book Outsiders-I Won’t Be Silenced in Sydney today.

Broadcaster Alan Jones opened the event with a glowing endorsement of the book.

“(Latham) doesn’t miss any of the politicians either. Malcolm Turnbull is living in a world of delusion, (Latham) cites all the failures,” Mr Jones said.

“And he says … Turnbull is the most radically leftist and divisive Prime Minister in Australian history. As these massive changes swirl around this Turnbull has become a bit player, the political equivalent of a cud chewing cow watching the passing traffic.”

The broadcaster also said Mr Latham’s book outlines how government agencies are “culturally at war with suburban and regional Australia” and also canvasses “identity politics”.

“(Latham) talks about identity politics and he says this, quote, ‘subdividing the community on the basis of race, gender and sexuality. Building a resentment among groups ignored by the selective nature of identity favouritism’.