Lidia Thorpe has resigned as deputy leader of the Greens in the Senate.

Senator Thorpe dated Dean Martin, the former president of an outlaw motorcycle gang, while sitting on a parliamentary law enforcement committee.

Party leader Adam Bandt is describing it as a “significant error of judgment”.

2GB Federal Politics Editor Michael Pachi told Jim Wilson the revelation will damage the Greens.

“It’s a difficult position for the Greens, as Lidia Thorpe is popular with party voters.”

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