So it looks like I was right about the government taking the view that May can sign us up to an Article 50 extension despite whatever our domestic legislation says:
Hearing @RobbieGibb is briefing the Sunday papers that Government is planning on ignoring British law and will use international law to extend Art 50. What price UK Parliamentary sovereignty eh? The voters will be furious just ahead of local elections.
— Stewart Jackson (@BrexitStewart) March 21, 2019
This needs to be challenged. If a deal with the EU has to go through Parliament, then so should any extension. Not just with a vote, not just with an SI to the European Union (Withdrawal) Act (2018), but with an Act of Parliament. May needs to be told that she has no authority to sign a delay. She has no authority from the people, or from Parliament. A legal challenge needs to happen quickly.
If May wanted a delay, that should have been sorted months ago. The problem has occurred, of course, because her deal arrived so late in the day. And that happened because she deliberately wanted it that way to frighten all the MPs who feared No Deal into voting for it. So she only has herself to blame.