The 38-year-old has been handed the newly-created role of Chief Secretary to the Prime Minister as part of a slew of changes to Sir Keir's Downing Street operation.

Exclusive: Darren Jones appointed to new senior role in charge of day-to-day delivery of PM’s priorities

The 38-year-old has been handed the newly-created role of Chief Secretary to the Prime Minister as part of a slew of changes to Sir Keir's Downing Street operation.