The group of politicians jointly running Northern Ireland could break up in a few days - if a major row isn't sorted out.
The First Minister, David Trimble, says his Ulster Unionist party will quit by next Tuesday, unless another political party Sinn Fein is expelled.
Has there been spying?
At the moment they are among several parties who are sharing power.
But Sinn Fein - which used to be linked to terrorist group the IRA - has been accused of spying.