“Mae gan Aelodau’r Cynulliad yma yng Nghymru rôl hanfodol hefyd o ran cynghori’r Senedd ar sut y bydd Brexit heb gytundeb yn effeithio ar elfennau craidd yr economi a chymunedau yng Nghymru. Ni ellir gwneud hyn os yw'r Prif Weinidog wedi torri'r llinellau cyfathrebu.
“Members of the Assembly here in Wales also have a vital role to advise Parliament on how critical areas of Wales’s economy and communities will be affected by a no deal Brexit. This cannot be done if the Prime Minister has cut the lines of communication.