The Dark Lord Speaketh

I just flipped over to Sky News to see if anything interesting happened at Gordon Browns meeting with the Parliamentary Labour Party tonight (answer, no nothing interesting did happen...)

Then I spotted this quote attributed to the Dark Lord himself:

Lord Mandelson responded by emphasising the need for unity, saying that they would not allow others to "drive wedges between us".

To whom was he referring?

Was it Geoff Hoon? Patricia Hewitt? Hazel Blears? Frank Field? Charles Clarke? Caroline Flint? Harriet Harman? Ed Miliband? David Miliband? James Purnell?