“Mae’n cyflwyno tystiolaeth sy’n profi mai trychineb fyddai Brexit heb gytundeb i Gymru. Mae’n egluro pam, pe byddwn ni’n aros yn yr UE, byddai’n dal i fod yn bosib inni fynd i’r afael â rhai o’r pryderon a sbardunodd y bleidlais dros ymadael.
“It provides evidence for why a no deal Brexit would be a disaster for Wales, and why, should we remain in the EU, it would still be possible to address some of the concerns which fuelled the vote to leave.