"Rydyn ni wedi ceisio trafod y materion hyn gyda Llywodraeth y DU sawl gwaith, ac wedi cyflwyno cynigion adeiladol ynghylch ffyrdd o sicrhau canlyniad a fydd yn amddiffyn buddiannau pob un o wledydd y Deyrnas Unedig, diogelu'r economi a pharchu datganoli.
“We have repeatedly tried to engage with the UK government on these matters, and have put forward constructive proposals about how we can deliver an outcome which will protect the interests of all the nations in the UK, safeguard our economies and respect devolution.