Scottish Labour sees chance of revival as polls show voters turn from Tories

Leader Anas Sarwar is confident of gains in May elections, amid predictions the party could come second to SNP

With a brisk and bracingly cold sea breeze buffeting the red, green and yellow trade union flags in bright sunshine, the protest at P&O's Scottish ferry port had the air of a labour movement revivalist rally.

Union leaders railed against P&O's bosses and the Conservative government in Westminster, demanding legal action and boycotts, applauded by Labour's leader in Scotland, Anas Sarwar, who then led the march to the shuttered P&O terminal at Cairnryan on the Irish Sea.