A fresh opinion poll has sent a quiet but unmistakable signal through Canberra: dissatisfaction is not flowing in just one direction.

This week’s Essential survey found that 58% of respondents said they would be open to voting for Pauline Hanson's One Nation at the next federal election. While openness does not equal committed support, the figure suggests the party’s appeal extends beyond its traditional protest base — and beyond the boundaries of conservative politics.

For years, Pauline Hanson has been seen primarily as a headache for the Coalition, peeling away voters disillusioned with mainstream centre-right policies. In tight contests, particularly in Queensland and regional areas, One Nation preferences have shaped outcomes and complicated electoral arithmetic for Liberal and National candidates.

But the latest polling hints at something broader: a reservoir of voter frustration that cuts across party lines.

For the Coalition, the risk is familiar. When conservative voters believe the opposition is too moderate — on cost of living, migration, climate, or cultural issues — minor parties on the right become an outlet. The Coalition must balance appealing to suburban moderates while not losing its traditional base to insurgent alternatives.

Yet the warning signs are not confined to the right.

For Labor, elevated openness to One Nation may reflect deeper anxieties among working-class and outer-suburban voters who once formed the party’s industrial backbone. Concerns about housing affordability, immigration levels, energy prices, and economic security are not ideologically exclusive. When households feel squeezed, protest sentiment can travel in unexpected directions.

The 58% figure does not mean a majority plan to vote One Nation. Rather, it indicates willingness — a softness in partisan loyalty. In a compulsory voting system like Australia’s, that fluidity matters. Voters who feel less anchored to major parties are more likely to experiment, particularly in Senate contests where minor parties often thrive.

One Nation has historically capitalised on moments of economic strain and political distrust. Its messaging frequently blends cost-of-living pressures with critiques of globalisation, migration policy, and government spending. In periods of uncertainty, such themes can resonate beyond traditional right-wing constituencies.

The broader political landscape provides fertile ground. Trust in institutions has fluctuated in recent years. Mortgage stress has risen alongside interest rates. Rents remain high. Infrastructure and public services strain under population growth. These pressures create a climate where protest politics can feel less fringe and more expressive of mainstream frustration.

For Labor strategists, the challenge lies in preventing discontent from hardening into defection. While the party’s primary contest remains against the Coalition, erosion in outer-suburban and regional seats could complicate electoral math, particularly in Queensland and parts of Western Australia.

For the Coalition, the calculation is equally delicate. Lean too far right to stem leakage and risk alienating moderates; stay centred and risk losing voters to populist alternatives.

In this sense, One Nation may not simply be a spoiler but a barometer — measuring how secure Australians feel about their economic trajectory and political representation.

Polls capture a moment, not a destiny. But when more than half of respondents express openness to a minor party long positioned on the political margins, it signals volatility. And volatility, in modern politics, rarely respects traditional party boundaries.

As the next federal election approaches, both major parties may need to ask the same question: not how to defeat One Nation, but why so many voters are willing to consider it.