On Wednesday, the party's deputy leader Bridget McKenzie said: "I'll give you my solid, rolled-gold guarantee here that come tomorrow, come Friday, Barnaby Joyce will be leading the National party", she told Sky News.
After a tense 48-hour standoff, senior Nationals MPs fell in behind the Deputy Prime Minister to fend off a partyroom insurgency that continues to threaten Mr Joyce's leadership.
Former senator Jacqui Lambie on her first day in Parliament in 2014.
"We've got plenty of people in the Nationals party room, a lot of capable guys there, and if it comes to that we would find a good leader, I feel sure about that", Mr O'Dowd said.
And nearly 50 per cent of respondents in Mr Joyce's electorate think their MP should move to the backbench or resign from Parliament altogether, as the repercussions from his personal crisis hit home.
Nationals lawmaker Ken O'Dowd said he expected a party delegation would confront Joyce soon to consider his position.
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.
But Nationals Cabinet member David Littleproud demanded Mr Joyce's critics should "put up or shut up".
"I'm over in Kuwait (this week) with back-to-back meetings from very early in the morning to late at night and focusing on Australia's military intervention and humanitarian contribution to Iraq so it's not a matter that I'm focusing on", she told ABC radio on Wednesday.More news: Mike Pence admits domestic abuse case was mishandled but backs John Kelly
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Nationals President Larry Anthony, the party's most senior bureaucrat and a former legislator, arrived at Parliament House on Wednesday telling reporters he was helping lawmakers deal with "a very hard time".
She was then transferred to work with another Nationals MP Damian Drumm, before eventually leaving the Nationals.
She said he should be given more time.
"I think we need to focus on the jobs or regional and rural Australians and leave Barnaby Joyce's personal life to exactly that, his personal life", Mr Littleproud said.
Mr Joyce's office initially advised the parliament he was in the Royal Queensland Regiment of the Army Reserve from 1995 to 2003.
But Mr Joyce told parliament Mr Maguire had contacted him, and in any case it occurred at a time he was seeking preselection for the New England by-election and was not a minister.
Mr Joyce is due to be acting prime minister next week when Malcolm Turnbull travels to the United States.
While Ms Landry is strongly defending Mr Joyce to stay on as leader, she indicated he might not be acting Prime Minister next week.
"I am not going to say therefore just because I failed I'm going to completely change my views and definition, " he said.