The Taoiseach, Mr Ahern, and the British Prime Minister, Mr Tony Blair, are due to discuss the North and European issues at Farmleigh this evening.
Last night, Mr Gerry Adams claimed the Government is considering excluding Sinn Féin from the political process.
He said the Government was politicking before the June elections, and of failing in its duty as co-guarantor of the Belfast accord.
Last week the Taoiseach denied the Government's attitude towards republicans had hardened, and claimed that a policy of exclusion would not work. Speaking in Derry last Thursday, Mr Ahern said: "Some parties seem to believe that a policy of exclusion is the answer. It is my belief that any such policy would not be workable."
In Downing Street yesterday, the SDLP leader, Mr Mark Durkan, suggested the people of Ireland could not wait forever for paramilitaries to cease activities and clear a path for the political process.