Two-Thirds: The Threshold Blocking a Greens Senator's Forced Leave

Federal Greens leader David Shoebridge is stalled in his attempt to force Senator Jordon Steele-John onto leave, a decision that now hinges on a supermajority vote within the party room. The impasse has emerged more than a week after The Nine newspapers reported that a three-page letter demanded an independent probe into allegations of inappropriate behavior toward women committed between 2017 and 2025. This dispute marks a defining early test for Shoebridge, who assumed leadership earlier this month.

The central obstacle is procedural rather than political. Shoebridge states that Steele-John agreed to take leave, but he admits he cannot enforce this unilateral decision. Under party rules, only a secret ballot in which two-thirds of the 12-member Greens caucus, meaning at least eight senators, vote to expel the member would compel compliance. Achieving that threshold is described as a drastic measure that would leave Steele-John’s standing damaged even if the Western Australian state party clears him.

Steele-John has rejected the characterization of the event as a consensus decision. He denies agreeing to leave and accused an internal faction within the Western Australian Greens of playing "nasty political games" by leaking the letter to media outlets. In explaining his public stance, the 32-year-old said he spoke out because he did not want his silence to be interpreted as an admission of guilt.

The standoff has immediate operational consequences for the Senate. During this week's estimates hearings, senators question government officials on policy implementation. Steele-John, who serves as the party’s disability spokesperson, is scheduled to skip the sessions despite the National Disability Insurance Scheme undergoing major reforms before the end of the decade. In a statement issued late on Friday, he noted that digital participation had been ruled out as "unacceptable," and he will instead focus on the independent investigation he hopes the Western Australian Greens will commence soon.

The situation places pressure on the party’s reputation for handling misconduct fairly. While no complainant has directly come forward, supporters argue that continuing public duties while allegations are active is difficult to justify. The debate is further complicated by questions regarding whether the timing of the allegations relates to state pre-selection rivalries. Shoebridge must now determine whether to pursue the high-risk expulsion vote or allow the investigation to proceed with the senator remaining active.

The outcome will define the tone of Shoebridge’s tenure as the party navigates a complex intersection of ethics and internal politics. The Greens have historically relied on consensus decision-making, making a forced vote an unusual step. Whether the leadership pushes for the two-thirds threshold or seeks a compromise will determine the next phase of the dispute.