The country is set to learn who will be the eighth leader of Fianna Fáil within the next few minutes.
Voting in the leadership contest has concluded and the ballot are now being counted.
The Taoiseach and outgoing party leader, Brian Cowen, was given a standing ovation after he addressed a meeting of the Parliamentary party.
Four people are vying for the top job - Micheál Martin, Eamon O'Cuiv, Brian Lenihan and Mary Hanafin.
Former Foreign Affairs Minister Martin is the front-runner to win the contest. However it is understood that there has been a late rally of support for Social Protection Minister Eamon O'Cuiv.