Facing a grilling from Liberal senator Linda Reynolds, ABC managing director Michelle Guthrie says she has "no idea about the sequence of events or the story" that underpinned a series of accusations in Question Time and Senate estimates on Tuesday.

The man at the centre of a controversy gripping Australia's wool industry has admitted he should not have secretly watched an anonymous focus group behind a one-way mirror, or told an ABC journalist to "f--- off" when he was later asked for a comment on the issue.

• Federal Politics

If Nationals leader Barnaby Joyce is found ineligible to sit in Parliament because he's a New Zealand citizen, who will take the top job?

• National Broadband Network

Politicians from both sides are pointing fingers the other way, over who is to blame for the problem plagued NBN.

• Federal Politics

The PM says the rollout of the NBN under Labor was a waste of money and he's just trying to get the project back on track.

• Federal Politics

A Senate hearing has heard a contractor lost a 1000 page security manual in November 2016 and almost a year later, no-one seems to know where it is.

• Federal Politics

The head of NBN Bill Morrow has revealed the company is losing money and a levy on wireless connections could be a solution.

• Federal Politics

The Immigration Minister says he's not backing down despite changes to citizenship laws opposed in the Senate and taken off the agenda.

• Federal Politics

The NXT leader is leaving the Senate to contest the SA election and might have just given his last speech, with kind words coming from both major parties.

Malcolm Turnbull has nearly as many bad polls in a row as Tony Abbott did when Turnbull took power from him. Artist: Matt Davidson.

• Federal Politics

Wayne Swan alleges BHP is "one of, if not the biggest tax dodger in Australia."

• Federal Politics

Amid opposition from State leaders over the government's new energy policy, Malcolm Turnbull has some work to do, to get them to agree.

Malcolm Turnbull attracts an avalanche of criticism after announcing modest savings in electricity prices.

• ASIC

James Shipton has been announced as new chairman of the Australian Securities and Investment Commission.

• Federal Politics

Hackers got hold of sensitive not classified information about Australia's war planes and navy vessels and the Defence Industry minister says it's a warning to us all.

Former PM Tony Abbott needs to outline why he has had a change of heart regarding climate science, according to Julie Bishop, his one time deputy.

The High Court will soon retire to consider the fate of seven politicians caught up in the citizenship scandal.

• Asylum Seekers

After Immigration Minister Peter Dutton's promise to crack down on 'fake refugees', most of the 7,500 who hadn't lodged applications for protection now have, leaving 71 facing deportation.

The only woman appointed to Tony Abbott's government and one of very few in the current cabinet, Foreign minister Julie Bishop's political career has had some unexpected obstacles. Artist: Matt Davidson.