Who could replace Keir Starmer as Prime Minister?

Sir Keir Starmer has set out a timetable for his departure as prime minister, as potential successor Andy Burnham returns to Westminster. Starmer appeared to get emotional as he thanked his wife, Victoria, for her support, saying being prime minister was the "proudest moment of my life". ------------------------------------------------------------------------------ Stream Good Morning Britain live, every weekday from 6am on the ITVX 📲 http://daytimelink.itv.com/WatchGMBYT Subscribe now for more! http://bit.ly/1NbomQa Like, follow and subscribe to Good Morning Britain! The Good Morning Britain YouTube channel delivers you the news that you’re waking up to in the morning. From exclusive interviews with some of the biggest names in politics and showbiz to heartwarming human interest stories and unmissable watch again moments. Join Susanna Reid, Ed Balls, Kate Garraway, Richard Madeley, Charlotte Hawkins and Sean Fletcher every weekday on ITV from 6am until 9 every weekday! ITVX: http://daytimelink.itv.com/WatchGMBYT Website: http://bit.ly/1GsZuha YouTube: http://bit.ly/1Ecy0g1 Facebook: http://on.fb.me/1HEDRMb Twitter: http://bit.ly/1xdLqU3 http://www.itv.com #GMB