Greens senator Lidia Thorpe is staring down a censure motion in the upper house, and an internal review, after she failed to disclose a relationship with a former bikie boss.
One Nation leader Pauline Hanson said she will move the censure motion when the Senate sits next week, labelling Senator Thorpe as unfit to serve in parliament.
It was revealed on Thursday the Victorian senator didn't disclose a relationship with Dean Martin, the ex-president of the Rebels outlaw motorcycle gang, while she was sitting on a powerful parliamentary committee.