For a decade, Pauline Hanson has been beating the same drum.Her comments this week – suggesting domestic violence was a “two-way street” and questioning why women did not simply leave abusive relationships – have caused significant concern and been labelled “dangerous” by experts and other commentators.But they are not, as they’ve been portrayed, another “gaffe” by the stumbling One Nation leader as she attempts to stabilise her party’s polls that show it might become a new electoral force in Australia.The comments make plain something that has been a driving force for the populist leader since her return to parliament in 2016.Sign up for the Breaking News Australia emailOne Nation’s political ascendancy in recent months has been built on replicating anti-immigrant and hard right pivots in the United States and the UK. Hanson’s own second coming was built on an allyship with groups of anti-feminist men and heavily influenced by domestic violence allegations against her son, Adam Hanson, which she says were false.In 2019, Hanson used parliamentary privilege to call her former daughter-in-law “nasty” and accuse her of making false claims about her son. She has consistently – inside and outside parliament – made claims, rejected by experts and evidence, that suggest women routinely make false allegations of violence for advantage in the family law system.Speaking in 2017, on domestic violence orders, Hanson said: “Women, mostly women, are going around throwing them around left, right and centre.”In 2021 on Sky News, Hanson said: “There are men who have been accused of these things that didn’t, it didn’t happen.“It shows you how lies and perjury are leading to the failure of Australia’s family law system and contributing to the death of 21 men by suicide and the murder of one woman each week.”The “21 men” figure has been repeatedly cited by Hanson, her colleague Malcolm Roberts, and others in One Nation as a campaigning point. The figure comes from a men’s rights organisation, the Australian Brotherhood of Fathers (ABF), and has been debunked by factcheckers.The ABF have been among Hanson’s biggest cheerleaders since her re-election. Roberts has been particularly close to the group, visiting several times, and recording a special video message for a gathering.One of the first things Roberts did after a federal parliament hearing in 2019 – when he claimed without evidence there were “many instances” of women making up domestic violence allegations – was to phone the ABF’s founder, Leith Erikson.The ABF has claimed in Facebook posts to have received donations from One Nation, and the political party has held community barbecues in support of the men’s group.The trope that women fabricate violence claims against men is a common grievance of men’s rights groups, but experts say there is no evidence to support this.Growing political influenceAfter the 2019 election, Hanson’s return to the senate became more than a political curiosity. The Morrison government, four seats short of a senate majority, suddenly needed her support to pass legislation.The government’s sop to Hanson was to accede to her request for a family law inquiry, and to make her the deputy chair (she introduced herself at hearings as the “co-chair”).