Watching The Sunday Politics, something struck me as I noticed Sarah Smith asking much the same question to her Labour guest as Andrew Marr had asked earlier, namely that they both got similarly-worded reply each time:
Andrew Marr: What is the difference between this situation and Diane Abbott, who was also calling for a second referendum, and Keir Starmer?Tom Watson MP: There was a difference between a letter that goes to a constituent which was clumsily worded, as was the case with Diane Abbott, and do an interview in the Guardian.
Both Sarah and Andrew left it there, but if you see the letter...Sarah Smith: But the other thing which is not a first is a member of Jeremy Corbyn's Shadow Cabinet saying that we should have a second referendum, Diane Abbott had sent a letter around her constituents in Hackney where she said she would argue for the right of the electorate to vote on any deal which is finally agreed?Andy McDonald MP: And I think the difference is that Diane Abbott has said that that was clumsily worded, that is not her position.
...you'll see that it's not "clumsily worded" at all. It couldn't actually be any clearer. Those Labour shadow ministers are telling an untruth. (Yes, I know! Shocking, isn't it?)