Keir Starmer has been urged to set out a more radical vision as the party dramatically overturned a previous 5,300 SNP majority to seize Rutherglen & Hamilton West by a margin of 9,400.
The party s candidate, Michael Shanks, took the Westminster seat in the by-election - which was called after former SNP MP Margaret Ferrier was ousted for breaking Covid rules.
Labour MP Stephen Kinnock, whose Aberavon constituency includes Port Talbot and who chairs the All-Party Parliamentary Group on Steel, writes exclusively for the Mirror after today's announcement by Tata and the Government