“Byddai'n gwbl gywilyddus i unrhyw Lywodraeth dynnu'r Deyrnas Unedig o'r Undeb Ewropeaidd heb gytundeb – boed hynny'n fwriadol neu o ganlyniad i ddiffyg gweithredu – heb geisio mandad penodol i wneud hynny.”
“It would be outrageous for any government to take the UK out of the EU without a deal – as a deliberate act or as a result of inaction - without seeking a specific mandate to do so.”