Parliament has now spoken. A large majority for Brexit in the Commons is now matched by a unanimous vote in the Lords.
The Supreme Court has succeeded in delaying the letter but not in stopping it. As I thought at the time of the discussions on the Supreme Court decision it is the view of Parliament we should send the letter. If it had not been Parliament would have said so and voted accordingly prior to the Court decision.
I expect the Lords to approve the Bill at third reading in a similar way. It would be odd indeed if they changed their minds after yesterdays important vote.