Hundreds of kilometres away in Canberra, the tide turned in favour of Mr Joyce surviving as Nationals leader, with his deputy Bridget McKenzie on Wednesday giving a "rolled gold guarantee" her boss won't be dumped, and other ministers lining up to insist the caravan should now move on.
"Barnaby Joyce has the full support of the National Party", she said.
Former senator Jacqui Lambie on her first day in Parliament in 2014.
The apology did little to defuse the pressure on his position, with Labor targeting the Government in question time about whether Mr Joyce breached the ministerial code of conduct by organising employment for Ms Campion in the office of Nationals MPs.
He said it was now important that the Nationals MPs "get back into their constituencies over the next week - people want to see them working and supporting their communities".
Mr Joyce is set to serve as acting Prime Minister next week when Malcolm Turnbull travels to the U.S. on an official visit, however he is facing a range of queries about his expenses and relationship with Miss Campion, who is now pregnant with his child.
Barnaby Joyce is fighting to keep his grip on the National party leadership.
Another Nationals lawmaker, David Littleproud, said there was "no leadership issue" and the media was "titillated" by the story.
But Mr Joyce is digging in, telling coalition colleagues that he is determined to emerge from the saga triggered by an affair with a former staffer.
"I can't quite fathom why basically a pregnant lady walking across the road deserves a front page, " he told ABC TV.
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Nationals president Larry Anthony is in Canberra to deal with the crisis, which he called a "very hard time" for the party.
"When she worked in my office, she was not my partner".
However, she said her understanding was the usual arrangements would apply next week.
Men were more likely to abandon the Deputy Prime Minister than women, while women were more likely to say the affair would not change their vote.
"He has done a lot for us particularly in regional Australia and I think we need to give him a fair go with it", Ms Landry said.
Veterans Affairs Minister Michael McCormack, who has missed out twice on becoming deputy leader, on Tuesday night denied he had been having conversations with colleagues to replace Mr Joyce.
"I am returning to Australia from Kuwait and I do have plans to be overseas next week, parliament is not sitting, if circumstances change then of course, I would change plans", Ms Bishop said.
Figures released on Thursday showed between January 1 and June 30 a year ago Mr Joyce's work flights on government planes, which also included periods when he was acting prime minister, totalled $227,508.
"It is stressful, marriage break-ups are very stressful things to go through and I think he is here to stay".