Barnaby Joyce is staring down his critics but he's lost the support of the West Australian Nationals, who say his leadership is untenable.
South Australia's party leaders will talk economics at a debate hosted by the Committee for the Economic Development of Australia on Wednesday.
Police say they are expecting to make more arrests after an investigation into the collapse of a Gold Coast investment firm led to a former director's arrest.
Mathias Cormann will add acting prime minister to his list of jobs while Malcolm Turnbull is away in Washington.
Letting the defence relationship with New Zealand become stale or crumble could cost Australia $1 billion a year, a defence strategist says.
The former WA Liberal National government has been criticised as poor economic managers responsible for record debt and deficit in a special inquiry.
Betting firm William Hill has been hit with a $A12.2 million fine for breaching anti-money laundering and social responsibility regulations.
A cheesy campaign jingle and a promise of internet 10 times faster than the NBN made the highlight reel on day four of the South Australian election campaign.
Bill Shorten has delivered a blunt message to Adani, saying the Indian miner should not expect taxpayer support for its Queensland coal mine.
Resources giant BHP Billiton has hiked its interim dividend after stronger commodity prices drove a 25 per cent increase in half year underlying profit.
Flights at five airports in New Zealand have been cancelled on Tuesday as the remnants of tropical cyclone Gita pummelled the country.
A man charged in Queensland after an investigation into the alleged fleecing of millions in a cold call property scam has been granted bail.
Victoria's roads minister has apologised to a female country mayor for saying current levels of funding were better than a kick down below.
Oil Search has tripled its half year profit and outlined plans to boost LNG capacity in Papua New Guinea.
Donald Trump says Mitt Romney "will make a great senator" after the former Republican presidential candidate announced his bid for a senate seat in Utah.
A Sydney court has been told the blood of a man allegedly killed by fellow drug dealers was found on a baton and in his shed.
Victorian paramedics are getting to cardiac arrest patients faster than ever and more people are surviving.