Deputy Prime Minister David Lammy led the charge, sharing his support at 2:28 pm, just moments before Mr Sarwar began his address.

Within an hour, the majority of the Cabinet had confirmed their continued allegiance to the Prime Minister.

This included both Wes Streeting and Ed Miliband, who are considered contenders to replace Sir Keir in No10.

Exiled former Deputy Prime Minister Angela Rayner, another thought to be gunning for the top job, also voiced her backing for the embattled Labour leader.

Speaking in Glasgow earlier today, Mr Sarwar expressed his “personal hurt and pain” but admitted Labour “desperately needs” a change of leadership following “failures” inside Downing Street.