Beverly Flynn has been expelled from the Fianna Fáil parliamentary party.
The decision was taken without a vote at this evening's meeting at Leinster House.
Only two party members spoke to the motion to expel her - the Taoiseach and Ms Flynn herself.
Speaking afterwards Ms Flynn said she had made the same arguments to her colleagues that she had been making publicly since the party decided to table tonight's motion.
She said she had no option but to defend herself when the party decided to move against her so swiftly, on the same day that she had suffered the trauma of the Supreme Court ruling.
She accepted that her parliamentary colleagues felt that the sanction of withdrawing the whip was appropriate, and for that reason she had not lobbied any of them.
However she said she would continue her fight at the meeting of the party's national executive on Friday when she would vigorously contest the motion to expel her from the Fianna Fáil organisation.
