Sunak grapples with NI protocol puzzle, but the stakes are different to 2019

PM's toughest political test comes amid plummeting interest in Brexit and elaborate parliamentary intrigue

For a Brexit-minded MP, the parallels may seem striking: an electorally embattled prime minister trying to push through a controversial Northern Ireland deal in the face of Tory and Democratic Unionist party (DUP) scepticism. But one thing has changed: this is 2023, not 2019.

Theresa May's struggles with Brexit, and her tumbling popularity with voters, led to her being forced out as prime minister by Conservative backbenchers. While no one would dispute that Rishi Sunak faces perhaps his toughest-ever political test, the stakes for him are, if not necessarily lower, then perhaps different.