In an untypically candid interview, the outgoing PM tells the BBC it was "really tough" to accept his political career was over.
The newly elected MP for Makerfield is expected to become PM this month and says he will stick to the 2024 Labour manifesto.
England's World Cup last-16 tie with Mexico is set to be moved to 19:00 BST on Sunday.
The 29-year-old was shot while observing rioting in Londonderry in April 2019.
Vickrum Digwa is serving a minimum of 21 years behind bars after fatally stabbing the student.