But has it ever truly been on the side of workers? Where do its interests really lie, and can it be relied on to provide a check on right-wing forces?             A Party with Socialists in It addresses those questions and more, telling the story of the Labour Party from its origins to today, showing how at every turn it has struggled with the tension between the rights and demands of workers and a more centrist position. As Jeremy Corbyn’s leadership attempts to revitalize the party after the initial success of the Blair years turned into disappointment and disenchantment, this clear-eyed history could not be more timely.