Barry Soper: ZB senior political correspondent on the growing calls from the Greens for Darleen Tana to step down - Heather du Plessis-Allan Drive

The Green Party is doubling down on their calls to encourage Darleen Tana to exit Parliament.

A new report from an investigation into alleged migrant exploitation at her husband's business has inspired Tana to quit the Greens.

ZB senior political correspondent Barry Soper says it's the right course of action for Tana should step down.

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