Pauline Hanson, the firebrand anti-Muslim immigration lawmaker who has rattled Australian politics from the fringes for more than 20 years, could be on the verge of a breakthrough in one of the country's biggest states.

Her One Nation party is tipped to win a clutch of seats Saturday in the Queensland state election, while the two main parties may struggle for an outright majority. That could make Hanson, 63, the kingmaker and see her party become a junior player in the state parliament.

"One Nation looks like it could play a big role in deciding the outcome of this election," said Chris Salisbury, a political analyst at the University of Queensland. "Hanson is a lightning rod for voters with grievances and has re-emerged on the political landscape at a time when there's a lot of disaffection with the major parties."

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