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This time five years ago, the DUP was right in the middle of its anis horribilis.

Some commentators thought things were so bad, the party might never recover from the very public bloodletting.

Grassroots dissatisfaction with the leadership of Arlene Foster prompted the party's elected representatives at Westminster in Stormont to move against her. That led, in turn, to a toxic succession battle between Edwin Putz and Sir Geoffrey Donaldson, in which the former prevailed over the latter. Thirty-four days later, the new man was very publicly defenestrated himself. Jeffrey

Donaldson took the spoils at the second attempt and the rest, as they say, is history. I'm Mark

Carruthers. Welcome to a red lines where we travel down memory lane to a time and a place that

feels in so many ways like another world. I'm joined by two people who had ringside seats for the drama

as it unfolded in front of them,

the Belfast Telegraph's political editor, Suzanne Breen,

and my BBC colleague, Gareth Gordon.

And I've also been talking to the former DUP special advisor, Tim Cairns.

Welcome, Suzanne and Gareth.

Hi, Mark. Hi, Mark. Good to have you both with us.

We'll hear from you in detail in a moment after this reminder of that eight-week roller coaster ride.

A short time ago, I called my party chairman to inform him that I intend to step down as leader of the Democratic Unionist

party on the 28th of May.

Probably one of the worst leaders ever.

Arlene, who's going to replace Arlene?

I'm not sure there's anybody capable of it.

A very dramatic night indeed, Mark, certainly a much more dramatic night than Edmund puts

or any of his supporters,

wanted people like Geoffrey Donaldson, Nigel Dodds, Diane Dodds, Gavin Robbins, didn't wait to hear

...