The First Minister is quite right to say that Boris Johnson must be held personally responsible for this action. Boris Johnson is someone who, throughout his career, has shown contempt for the truth, contempt for Parliament, contempt for devolution and—although it is out of character for me to stand up for the Queen—contempt for a monarchy that he professes to believe in.
However, is it not the case that the whole UK Government must be held responsible as well? Those people chose to serve under him; his Cabinet and his adviser team include people who were deeply complicit when the leave campaign broke the law in order to secure the referendum result. Why should we expect any better of them now that they are in government? Is it not clear that the UK now has a rogue Government that cannot, in any way, be expected to respect democracy or the rule of law?