Just seen this on Twitter and thought it was worth throwing into the mix here. Sorry for another Brexit thread but, hey, its just one more on top of the thousands.
Key text of the Withdrawal Agreement on the applicability of EU law to Northern Ireland in the backstop:
(it helps to remember that Protocol refers to the Northern Ireland Protocol)
https://twitter.com/hayward_katy/status/1168935609513254912/photo/1
"In practise the extent to which amendments or replacements [to EU law] may be relevant for a temporary Protocol will be limited"
"There is also provision for the UK and the EU to jointly agree to include within the protocol new areas of EU law"
"However this would clearly require the agreement of both the UK and the EU as set out in the Protocol."
Which means, as i understand it, if the backstop were to be implemented, NI would be bound by current and existing EU law but any new EU law would need to be agreed jointly by the EU and the UK. This does undermine the claim that the backstop is undemocratic and it certainly undermines Johnson's claim yesterday that the backstop gives Dublin more say over NI than Westminster or Stormont.