What does the DUP want? Can it ever be satisfied?

Well, now we know – or think we do. The DUP will agree to support the Government’s EU withdrawal bill, but only if it agrees to give Unionists a veto that would render its application to Northern Ireland null and void.

Instead of a consent mechanism, the party wants a denial, or revocation, device, which it would use at the earliest opportunity to ensure that NI would leave the EU on “exactly the same” terms as the rest of the United Kingdom.

The fact that this would impose a hard border in Ireland doesn’t bother Nigel Dodds, the leader of the DUP at Westminster, or his colleague Sammy Wilson. A hard border, defining the province as an integral part of the UK, is what they have always wanted. It is the reason they got into politics in the first place.