Alastair Campbell on Damian McBride briefings and claims
Damian McBride and his team "played a quite a significant part in putting Labour out of power", said Tony Blair's former director of communications.
Alastair Campbell claimed "they helped usher in a Conservative government".
Mr McBride, Gordon Brown's chief spin doctor, has published his memoirs as Labour's conference gets underway, which detail how he briefed against colleagues and cabinet members.
Mr Campbell said a main flaw of Mr Brown was his need for "truly horrible people to be around him, doing truly horrible things in politics" which gave Labour a bad name.
More from the Daily Politics: Watch full programmes from the last seven days via BBC iPlayer; 'like' us on Facebook, external page or 'follow' us on Twitter, external