DARWIN, AUSTRALIA - JUNE 21: (EDITORS NOTE: Image has been shot in black and white, no colour version available.) Prime Minister Malcolm Turnbull during a door stop at a construction site on June 21, 2016 in Darwin, Australia. (Photo by Stefan Postles/Getty Images)

DARWIN, AUSTRALIA - JUNE 21: (EDITORS NOTE: Image has been shot in black and white, no colour version available.) Prime Minister Malcolm Turnbull during a door stop at a construction site on June 21, 2016 in Darwin, Australia. (Photo by Stefan Postles/Getty Images)