Ar ddechrau blwyddyn newydd, mae’r Prif Weinidog Mark Drakeford wedi ailadrodd ei rybuddion ynglŷn ag ‘argyfwng diamheuol’ Brexit heb gytundeb.
First Minister Mark Drakeford has started the New Year by renewing his warnings about the ‘unmistakable crisis’ of a no-deal Brexit.