Patrick Maguire writes about politics and is the 2016 winner of the Anthony Howard Award.
Its seven MPs are much less sympathetic to Corbyn's party than popularly imagined, and won't ever take their seats.
This could prove to be the moment that May's premiership was damaged beyond all repair.
In electoral terms, his leadership was torpedoed by factors outside of his control.
The leader blamed the focus on his faith, but political opponents said that results doomed the Liberal Democrat leader.
Labour won't ask, and there is no political incentive for the republicans to do so.
Corbyn's one-time leadership challenger tipped to take on the brief, against the backdrop of a Tory deal with the DUP.
The party won't attack social legislation and will use its position to prove unionism works.
The UK government's potential confidence and supply arrangement could well suit Sinn Fein as well as it suits the DUP.
Despite the Twitterstorm, Owen Paterson did not say so – and the issue, as far as the DUP is concerned, is already resolved.
The unionists have no interest in reducing their own leverage over a doomed prime minister.