So on the Sunday after the election on Marr, JC was asked if he wanted to stay in the single market.
His reply was - and this isn't quoted but my own words-
If we leave the EU as required by the referendum vote, we will leave both the single market and customs union. However, Labour will do all in its power to retain as much of them in the new post Brexit Britain as is possible as Labour recognises the potential loss of jobs and harm to the economy if we don't.
He went in to say that if there is a vote in the QS as an amendment to remain in the single market, JC said that he would vote against it as it would be anti- democratic and not what the majority voted for.
From my perspective being a strong remainer, I am disappointed but I can follow JCs line of argument. It is all of a piece.