Voters will "overlook" political scandals and the Coalition's issue with women at the next election, according to Federal Treasurer Josh Frydenberg.

Key points: Josh Frydenberg says both sides of politics have had issues with women in recent months

Josh Frydenberg says both sides of politics have had issues with women in recent months He insists this will not change people's vote at the next federal election

He insists this will not change people's vote at the next federal election The Liberal Party has preselected women in fewer than one in four winnable Lower House seats

Nationals MP Andrew Broad resigned as a junior minister yesterday, after New Idea magazine alleged he used a dating website to meet a woman 20 years his junior whilst on a personal trip to Hong Kong.

It follows scandals surrounding former deputy prime minister Barnaby Joyce and allegations of bullying raised by former Liberal MP Julia Banks.

But Mr Frydenberg, the Liberal Party's deputy leader, has vowed it will not affect the Coalition's vote.

"I think the Australian people overlook those issues and really are focused on the outcomes that the Government can deliver them, in terms of the essential services that they need and require," he said.

"Obviously I'd like to be focused, and the media to be focused, on the economic message and numbers we released yesterday, but Andrew's conduct was unacceptable and he's resigned and it was the right thing to do.

"The Australian people are focused, and their government are focused on delivering them a stronger economy."

On Tuesday, Deputy Prime Minister Michael McCormack argued the Nationals do not have a problem with women because "both women" in the federal party room — Michelle Landry and Bridget McKenzie — are ministers.

The Nationals have 22 MPs and senators in Federal Parliament.

Prime Minister Scott Morrison with the women in his ministry. ( ABC News: Marco Catalano )

The allegations against Mr Broad follow a steady stream of criticisms of the Coalition's treatment of women.

In February, Mr Joyce resigned as Nationals leader after his affair and looming pregnancy with a former staffer emerged. He later faced separate allegations of sexual harassment.

Mr Joyce strongly denied those allegations and a party investigation was unable to reach a conclusion.

The Coalition's lack of women in its ranks has been in the spotlight all year, with senior figures in the party speaking publicly about what they called a culture of sexism and intimidation.

Queensland Liberal Jane Prentice lost preselection in her seat of Ryan and New South Wales Liberal Ann Sudmalis opted against seeking re-election, citing "branch stacking, undermining and leaks".

Shortly after the September leadership spill, former foreign minister and deputy leader of the Liberal Party Julie Bishop detailed the "appalling" behaviour of colleagues.

"Our party, in fact all parties, recognise they have a problem in attracting and maintaining women, diversity in general," she said.

"I have seen and witnessed and experienced some appalling behaviour in Parliament, the kind of behaviour that 20 years ago when I was managing partner of a law firm of 200 employees I would never have accepted."

Senator Lucy Gichuhi told her Upper House colleagues she would be naming and shaming bullies in her party, after she was relegated to an unwinnable spot on the South Australian Senate ticket.

Minister for Women Kelly O'Dwyer told 7:30 "there's no question that the Liberal Party can and should do better when it comes to getting more women into Parliament".

In November, following a landslide victory for the ALP at the Victorian election, Ms O'Dwyer reportedly told a meeting of Victorian MPs that voters regarded the party as "homophobic, anti-women, climate-change deniers".

In the same week, Ms Banks said her party's women problem was one of the reasons she would be moving to the crossbench.

Her announcement that she would be sitting as an independent came three months after she revealed she would not be standing for the Liberal Party at the next election due to "cultural and gender bias, bullying and intimidation" within the Government.

It is not just the Coalition that has faced these allegations.

Labor MP Emma Husar, who has had her pre-selection revoked, has accused NSW party officials of undermining her and forcing her out of politics.