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Sir Jeffrey Donaldson will succeed Edwin Poots as Democratic Unionist Party leader.

He's insisted the so-called Northern Ireland protocol, which allows Belfast a special place within both the EU and UK trading systems, will not continue in the current form - if at all.

Donaldson has also demanded to see action before he signs up a new power sharing arrangement with Sinn Fein.

On the hundredth anniversary of the opening of the Northern Ireland parliament, no-one can afford to see political stalemate.

So what happens now?

Political editor Nick Watt reports. Emily Maitlis is joined by DUP chief whip in Westminster Sammy Wilson, chair of the Northern Ireland select committee Simon Hoare and Sinn Féin MP John Finucane.