Labour leader Ed Miliband has admitted that he sought the sacking of Gordon Brown's former aide Damian McBride, and that he raised his concerns at the time to Mr Brown.
He told the BBC's Andrew Marr Show that he was concerned about "indications that he [McBride] was briefing against colleagues".
More top news
England have been beaten by nine wickets against Pakistan in the first Test at Lord's.
Mayor of London Sadiq Khan is backing the scheme.
Sunday will be a fine day across much of Scotland and northern England, with much less coastal mist and low cloud than yesterday.