Pauline Hanson has offered an olive branch to the coalition over a potential team-up but has rejected compromising One Nation's right-wing policies to strike a deal.
Polling from RedBridge Group and Accent Research shows One Nation could win up to 59 lower house seats if a federal election were held today.
The result would leave Senator Hanson's anti-immigration party as the official opposition, reducing the coalition to a handful of seats and forcing Labor into minority government.
But RedBridge analyst Alex Fein said people should reject the "reflexive interpretation" the poll - backed up by others showing a surge of support for One Nation - was lurching towards the far right.
Rather, many people were experiencing deteriorating living standards and public services, while trust in institutions such as government, media and businesses had collapsed.