London MPs David Lammy and Wes Streeting clash over Andy Burnham challenge to Keir Starmer

Deputy Prime Minister David Lammy has cast doubt on whether Wes Streeting could get the backing of 81 MPs to trigger a leadership challenge against Sir Keir Starmer.

The Justice Secretary and Tottenham MP also pledged his loyalty to Sir Keir, who represents Holborn and St Pancras, as he battles to stay Prime Minister.