Five years ago, the DUP was in largest party in Northern Ireland, lurched to open civil war.
The party had been led by Ian Paisley for 37 years – but an unprecedented outbreak of factional politics saw three different leaders in just 50 days.
The middle one, Edwin Poots, lasted a total of just 33 days.
To explain the background to the DUP’s woes and their long-term effect, Ciarán Dunbar joined by the Belfast Telegraph’s political editor, Suzanne Breen.