The win that made One Nation a major party

Pauline Hanson is on a roll.

The latest test came over the weekend in a by-election for the small coastal electorate of Secret Harbour, south of Perth, where almost 40 per cent of voters gave One Nation their first-preference vote -- numbers that Labor and the Coalition could only dream of at this point.

Today, Michelle Grattan, chief political correspondent at The Conversation, on the One Nation blitz.

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Michelle Grattan, chief political correspondent at The Conversation