Libertas founder Declan Ganley says he hopes to be able to field candidates in next June's European Parliament elections, but he would only do so if he could run candidates across multiple member states.
He said that was the only way to bring the debate back to where it needs to be, in Brussels.
Mr Ganley said Europe needs a constitution on which every citizen in Europe had to be given a vote.
He also told the Oireachtas Committee on Ireland's future in the EU that 'there are charades being played to try and walk us into a second referendum'.
Libertas was to the forefront in the successful campaign for a No vote in the referendum on the Lisbon Treaty.
Committee Chairman Senator Paschal Donohoe (FG) said it was important that members hear submissions from all sides before the committee compiles its final report toward the end of next week.
Committee schedule:
10am: Mr Declan Ganley - Libertas
11.30am: Prof Richard Sinnott, School of Politics and International Relations, UCD
2pm: Institute of International and European Affairs
Brendan Halligan, Chairman
Peader O'Broin, Senior Researcher
Patrick Keatinge, Professor Emeritus, Trinity College Dublin and member of the IIEA
Anthony Brown, Chairman Publications Committee
4pm: Prof Farrel Corcoran, School of Communications DCU
The full membership of the Sub-Committee is:
Senator Paschal Donohoe, Fine Gael (Chairman)
Thomas Byrne, TD (Fianna Fáil)
Joe Costello, TD (Labour)
Lucinda Creighton, TD (Fine Gael)
Timmy Dooley, TD (Fianna Fáil)
Beverley Flynn, TD (Fianna Fáil)
Michael McGrath, TD (Fianna Fáil)
Billy Timmins, TD (Fine Gael)
Senator Deirdre de Búrca (Green Party)
Senator Pearse Doherty (Sinn Féin)
Senator Rónán Mullen (Independent)
Senator Phil Prendergast (Labour)
- One to One: Aine Lawlor talks to Declan Ganley, founder of the anti-Lisbon Treaty group Libertas
- Six One News: David McCullagh reports that Declan Ganley said the EU needed a simplified, 25-page Constitution to replace the Treaty
- One News: Joe MagRaoillaigh reports on this morning's testimony at the Oireachtas Committee on European Affairs
- News At One: Declan Ganley, Libertas, says at the committee hearing that Europe needs a constitution voted on by all European citizens
- News At One: Déirdre de Búrca, Green Party Senator, says Irish people should not be asked to vote on a new treaty unless it is very different from the last
