Starmer resigns but what could go wrong for Burnham?

Tom Bradby and Robert Peston are in Downing Street to discuss Keir Starmer's resignation, after he set a timetable for his departure as PM.

Newly elected MP Andy Burnham has confirmed he will run to replace him as Labour leader.

Tom and Robert break down what went so wrong for Starmer, less than two years after his landslide election win, and what obstacles could be in Burnham's way.