Sinn Féin President Gerry Adams has called for deomstrations against the postponement of the NI Assembly elections.
Speaking on RTÉ Six One news, Mr Adams strongly criticised the decision to postpone the elections.
He said it was clear that in the end Tony Blair chose David Trimble's view ahead of that of the Taoiseach.
Gerry Adams also said at his press conference that he believed the IRA statement should now be published.
The Taoiseach earlier said he disagreed with the British government on the postponement of the elections, which he said would cause more problems for the process than it solved.
At a news conference in Dublin, Bertie Ahern said that while the Irish Government did not agree with, nor endorse this step, the strength and critical importance of the partnership between the two governments would endure.
The Taoiseach said that recent statements by Gerry Adams were helpful and brought matters to a new level of clarity but were not sufficient to convince everyone that paramilitarism was definitively at an end.
He added that he regretted that there was not a clear and unambiguous IRA statement to begin with, which he said would have solved everything.
The Northern Secretary, Paul Murphy, had told the House of Commons that the Northern Assembly elections would be postponed until the Autumn.
The elections had been due to take place on 29 May.
UK Prime Minister Tony Blair said that if the IRA had provided clear answers to questions posed three weeks ago, the problem would have been solved.
Speaking in Downing Street, he said 'If we have the election now, without agreement, we will simply make an eventual agreement less likely.'
Mr Blair said the postponement had been made necessary by the refusal of Sinn Féin and the IRA to state specifically that the IRA's leadership would no longer authorise a series of paramilitary activities defined in the two governments' joint declaration.
Referring to yesterday's statement by Gerry Adams, Mr Blair said the IRA leadership was determined that there would be no activities which would undermine the peace process and the Good Friday Agreement.
But, he said, there was a point blank refusal to rule out expressly the activities stated in paragraph 13 of the joint declaration, which was also published today.
The joint declaration had been designed to clear the way for progress in the North.
The governments also published an agreement between them on arrangements to monitor compliance with the Good Friday Agreement, and proposals in relation to people 'on the run' (OTRs).
See the Joint Declaration, the Proposals on OTRs and the Compliance Agrreement