The Americans would call Mrs May's bribe to the DUP to keep quiet during key votes "pork-barrel politics". Because of Ulster's best-known export, perhaps we should call it "linen-chest politics". If there were any justice, there would be a consequential annual top-up payment of £1.6bn to Wales, but of course Mrs May knows that her small band of Welsh MPs will never rebel. Realpolitik rules.
Government apologists will point to the Swansea City Deal of £1.3bn, but that money is spread over five years at least. Mrs May should immediately make some amends by insisting the GWR electrification should be wrenched back to its original timetable, increasing prosperity for the whole of South Wales, not just the Bay region.