Feel sorry for Diane Abbott. As other people have said, she was good on Daily Politics for years and had no concerns about being in a studio. She knew all about TV since I believe she was a researcher/reporter for TV-am way back when. She's clearly very bright if a good degree from Cambridge is evidence. Interviewers were only asking something she as a potential Home Secretary should be on top of a brief of and she seems to be a quick study - especially given Manchester and London. So something must be wrong.
So I don't think her problems are a Murdoch plot.
Not convinced Thornberry is any good - this was the woman who posted a photo of a white van in front of a union jack home with a sneer. Twitter isn't owned by Murdoch but people were pretty quick to condemn her then.
I'll be reading policies hard before I vote. But I would like competent people if there are any.