A Green Party election candidate and victims' campaigner has said she will be voting against joining a new coalition in Dublin, saying its draft programme for government "is entirely at odds" with her values.
Lesley Veronica stood in the Oldpark area of north Belfast in last year's council elections.
A member of the Victims and Survivors Forum, her father, David Bingham, was shot dead by the IRA in January 1973 when she was just four.
The Green Party will hold a special convention today to debate the programme for government agreed with the leaders of Fianna Fáil and Fine Gael.
Its northern members will also meet tomorrow.
More than three-quarters of the party's members need to back a move to join an historic coalition government involving the two civil war parties.
Over 2,600 members have registered online to receive a vote - around 800 registered in Northern Ireland.
Fianna Fáil and Fine Gael have made a series of concessions on transport, energy and infrastructure in order to secure Green Party support to prop them up in government.
Fianna Fáil leader Micheál Martin would serve as taoiseach until December 2020 under the deal, with current taoiseach Leo Varadkar then taking over in a rotating role.
However, Ms Lesley said the proposed programme for government "is entirely at odds with all of my values with regard to social justice issues around housing, child poverty and the economy".
"I believe it runs contrary to the values of the party too. I will not be voting in favour of another austerity programme," she said.
Green Party votes from north of the border are seen as crucial to securing support to forge ahead with the coalition plans.
While most Green TDs support the blueprint, the party's leader in Northern Ireland, Clare Bailey, abstained in an indicative vote taken by representatives on Monday.
It is expected she will speak publicly after tomorrow's membership meeting.
The south Belfast MLA is regarded as the driving force behind the Green's growing electoral success and increase in membership across the north.
The party's second MLA, Rachel Woods, who represents North Down, has also not spoken publicly.
Deputy leader and Belfast city councillor Malachi O'Hara has also remained silent on the draft programme for government.
The results of the Green Parry ballot will be announced on June 26, with the document also being voted on by Fianna Fáil and Fine Gael members.
The youth wing of Fine Gael has said it will not be voting for the deal, despite party leader Leo Varadkar warning of a "political crisis" if it is not endorsed.
