Dublin Lord Mayor Hazel Chu will face a no-confidence motion as chairperson of the Green Party tonight.
It was deferred at last week's parliamentary party meeting.
Three senators lodged the motion after she decided to run in the Seanad elections as an Independent, without the Greens' official support.
The party decided not to run any candidate, but Councillor Chu received six personal nominations to get on the ballot paper.
Doyle Flush In Donegal As Wicklow Hurlers Promotion Bid Remains Right On Track
Wicklow Fashion Brand To Feature Prominently During Ireland's Six Nations Clash With Wales
TD Calls For The Government To Get A Move On With South-Wicklow Greenway
Wicklow Councillors Demand €15m In Emergency Funding For Storm-Damaged Roads
Wicklow Hurlers Dominate Fermanagh To Ramp Up Promotion Hopes