A National Party investigation into the harassment claims, which Mr Joyce denies, was inconclusive due to a lack of evidence.
Mr Joyce was previously Minister for Infrastructure Transport and Regional Development from December 2017 to February 2018.
The Nationals leader noted the world was changing and backed a re-elected coalition government as the only clear choice to manage the global stage.
"If Mr McCormack remains in that position we are keen to keep working with him, and would also like to invite the new Deputy Prime Minister, Barnaby Joyce, to visit Benalla so he can see the two Inland Rail plans now on the table - and why we prefer the track realignment".
A climate change sceptic will be Australia's new deputy prime minister after a leadership revolt in the coalition government's minor party, making it harder for Prime Minister Scott Morrison to achieve a commitment of zero net emissions by 2050.More news: Tropical depression Claudette continues with heavy rain in southeast region, NHC says
Wasting no time, it is understood when he spoke with Mr Morrison he already had a list of what would be needed to win key seats.
Ms Joyce's 24-year marriage to Natalie collapsed in December 2017 and two months later it was revealed he had been having an affair with his former media advisor Ms Campion.
"I think that if he became leader again there would be women out there that would be unhappy with that, " she said.
WA Nationals leader Mia Davies, who has been a vocal critic of Mr Joyce, on Monday also said she was disappointed.
Joyce called the allegations "spurious and defamatory", adding that after three years on the backbench he hoped to "be a better person to do a better job".More news: Covid-19: NI records 178 new cases and no further deaths
"It is not Barnaby policy, it's Nationals policy", the Deputy Prime Minister said.
"I think it shows they're focused on internal matters instead of the people of regional Australia".
"If the National Party room believes that the best deal for regional Australia is to make sure that we secure their jobs, that we secure their industries. that's the view that I'll support", he told reporters in Canberra.
In Question Time on Tuesday, Labor MP for Franklin in Tasmania, Julie Collins, asked Mr Joyce how he responds to the concerns of women in agriculture.
Morrison congratulated Joyce on his elevated role, saying in a statement that they shared a "passion for ensuring our regions and rural communities thrive".More news: Vietnam to receive a million Covid vaccine doses by July