The DUP has demanded that the British government publish its document on the way forward for the North's peace process. By failing to do so, Mr Blair was excluding ordinary people from the political process, the party claimed.
North Belfast MP, Mr Nigel Dodds, said: "As the pro-agreement parties are given time to reflect on the deal agreed by them at Hillsborough, once again it is the people of Northern Ireland who are left in the dark.
"It is essential the government publish its 28-page document outlining the way forward in order to give the people the chance to consider the proposals.
"These proposals have been agreed by David Trimble but are being kept secret from the people of Northern Ireland."
Mr Dodds said the British government and the pro-agreement parties were "clutching at straws". The only real way forward was to write the obituary of the Belfast Agreement and hold Assembly elections, he said. "Following elections, real and meaningful negotiations can take place about the future of Northern Ireland and a new deal created which will command the confidence and support of the people."
He said the current process lacked credibility and transparency: "Yet again the government is abandoning the principles of democracy and accountability in pursuit of a failed agenda."
DUP leader, the Rev Ian Paisley, said the Ulster Unionists had once again conceded to republicans. "After months of tough talk from the UUP, it is clear that party is inextricably linked to the raft of concessions negotiated with Sinn Féin/IRA.
"Let us not forget it was the bad behaviour of republicans which precipitated the most recent suspension, yet it is republicans once again who are being appeased. By their involvement and acquiescence, the UUP is delivering up the demands of the IRA.
"Ultimately through the folly of the UUP, republicans have negotiated themselves into a situation where they get huge concessions, win permanent places in government, likely control over criminal justice and policing, and the opportunity for Gerry Adams to be deputy first minister."
Dr Paisley said the deal was a disaster for unionism and compounded the mistakes of the Belfast Agreement ten-fold.
"Unionists must break this cycle of decline. Only an election can deliver that opportunity and only a DUP victory can halt the republican agenda."