Opposition Leader Peter Dutton says he believes Greens Senator Lidia Thorpe is "not fit" to serve in the federal parliament after she admitted to briefly dating an ex-bikie while sitting on a law enforcement committee.
Senator Thorpe resigned her leadership position within the Greens on Thursday after the ABC revealed she had a relationship with the former president of the Victorian Rebels, Dean Martin, while also holding a role on a parliamentary committee which received confidential police briefings about organised crime.