UUP in crisis as Donaldson quits
David Trimble was plunged into the greatest crisis of his leadership after Mr Donaldson announced he was leaving the party along with two other Assembly members.
Fermanagh and South Tyrone MLA Arlene Foster and Lagan Valley Assembly member Norah Beare are also leaving. "We have made the decision that we are resigning from the Ulster Unionist Party and will be considering our options," Mr Donaldson said.