The DUP is set to come under renewed pressure in the coming weeks to share power with republicans following yesterday's decision by Sinn Féin to endorse the PSNI.
The party's ard fheis voted overwhelmingly to back the police service in a move that has been welcomed by both the Irish and British governments.
The DUP has given the decision a guarded welcome, saying it will wait to see how Sinn Féin delivers on the vote before making any promises about power-sharing.
However, the unionist party is expected to come under major pressure from Dublin and London to drop its refusal to enter government with republicans.
Taoiseach Bertie Ahern and British prime minister Tony Blair meet tomorrow to discuss the matter and are expected to announce fresh Assembly elections for March after their talks.
Their plan is to have a power-sharing executive up and running in Stormont shortly after that vote.