As Malcolm Turnbull prepares for the first sitting day of the year, the latest Newspoll survey has found support for the Coalition has slipped to the lowest level since Mr Turnbull took on the leadership.

The Australian reports the government is trailing Labor by 46 to 54 per cent in two-party preferred terms, with the Coalition’s primary vote dipping four points over the summer to 35 per cent.

The Newspoll survey also found 29 per cent of people would not give their House of Representatives first preference vote to either Labor or the Coalition.

It comes as Mr Turnbull is the subject of headlines both nationally and internationally over leaked details of his phone call with US President Donald Trump.

In an exclusive interview with Nine Network’s Political Editor Laurie Oakes on 60 Minutes last night, Mr Turnbull declared he is standing firm with Mr Trump and has denied any suggestion the refugee deal with the US will leave Australian indebted to the president.

Read more: PM Malcolm Turnbull denies refugee deal will leave Australia indebted to Donald Trump