Wednesday, 24 June 2026

A Marxist Critique of Robin Blackburn’s An Unfinished Revolution: Karl Marx and Abraham Lincoln

Robin Blackburn’s An Unfinished Revolution: Karl Marx and Abraham Lincoln offers a significant addition to the study of Marx’s role in the American Civil War. It includes Marx’s journalism, his letters to Engels, and the International Workingmen’s Association’s messages to Lincoln. However, as the review suggests, Blackburn’s political and methodological approach—shaped by the decline of the academic left and its distancing from revolutionary Marxism—limits the interpretations. While the book sheds light on many aspects, it ultimately does not fully capture the revolutionary importance of the history it describes.

Blackburn’s observations are accurate. He rightly highlights that Marx’s engagement with the Civil War was core to his political work in the 1860s, not just a side interest. As the review states, Marx closely tracked military campaigns, contributed extensively to the New York Daily Tribune and the Vienna Presse, and coordinated widespread working-class resistance in Britain against Palmerston's pro-Confederate interventionist policies.”¹ Blackburn also notes Marx’s respect for Lincoln as a bourgeois revolutionary who, faced with circumstances, went beyond his class boundaries. Marx’s 1865 tribute—cited in the assessment—praises Lincoln as “one of the rare men who succeed in becoming great, without ceasing to be good.”²—was not diplomatic rhetoric but a political judgment grounded in historical necessity.

Blackburn’s political framework is rooted in his longstanding connection to the New Left Review and its post-Trotskyist origins. The assessment places Blackburn within the tradition of the International Marxist Group and the reunified Fourth International, which split from the International Committee in 1963, leading to a trajectory of political abandonment. This milieu transitioned from Pabloite entryism into the Labour Party to Eurocommunism, support for national-liberation movements, and ultimately to academic postmodernism and identity politics prevalent in today's pseudo-left. As noted, this development “is not a series of disconnected errors. It flows from the abandonment of the central Marxist principle: the political independence of the working class and the fight for world socialist revolution".”³

This political lineage influences Blackburn’s view of the American Revolution as an unfinished process. Marx considered the Civil War a bourgeois-democratic revolution that dismantled the slaveholding elite. However, the emancipation of four million enslaved individuals highlighted social issues—land redistribution, political rights, education, and economic independence—that capitalism could not address. The failure of Reconstruction—marked by the withdrawal of federal troops and the reinstatement of white supremacist rule in the South—further exemplifies this ongoing incompleteness.”⁴—expressed the class limits of the bourgeoisie, not the failure of American democracy in the abstract. From this perspective, the unfinished tasks of the Civil War point not toward liberal reform but toward socialist revolution.

Blackburn, however, examines the issue from a left-liberal reformist perspective. The critique suggests that the New Left Review’s shifting politics—ranging from Keynesianism to left-nationalism and academic radicalism—fail to recognize the working class as a crucial revolutionary subject. Consequently, their idea of the “unfinished revolution” stays confined within bourgeois political boundaries. Here, the working class is seen merely as an object of analysis rather than as an active agent shaping history.

The methodological critique is equally decisive. Marx did not approach the Civil War as an intellectual curiosity but as a revolutionary strategist. His journalism was “a political act aimed at clarifying the stakes of the conflict for workers in Europe and America.”⁵ He aimed to analyze the class forces at play and the strategic consequences of their conflict. Blackburn’s research, however, views Marx’s involvement as a moment in intellectual history rather than a blueprint for revolutionary action. This difference in approach highlights the divide between Marxism as a revolutionary practice and the academic Marxism that now largely influences the post-Trotskyist left.

The assessment compares Blackburn’s method with the stance of the International Committee of the Fourth International regarding the 1619 Project. It characterizes the project as a defense of the revolutionary legacy of the Civil War, opposing a racialist misrepresentation. The argument suggests that the 1619 Project replaces “an immutable racial pathology”⁶ with the class dynamics of American history, thereby serving contemporary ruling‑class interests by dividing the working class. This example illustrates what it means to apply Marx’s method to contemporary political struggles: history is not merely to be interpreted but to be used as a guide to revolutionary practice.

The review concludes by asserting that the working class is the rightful successor to the democratic revolutions of 1776 and 1865. These victories—such as equality before the law, the abolition of slavery, and birthright citizenship—are currently under persistent threat from a capitalist oligarchy that is shifting towards authoritarianism. Defending these gains is inherently linked to the struggle for socialism. As David North writes, “The American working class will not arrive at the construction of independent organs of struggle and rule without studying the history of the country in which it lives.”⁷ The unfinished tasks of the Civil War, the assessment argues, cannot be resolved within the framework of the New Left Review or the academic left more broadly.

Blackburn’s book is useful but constrained. It retrieves key historical data but misses its revolutionary significance. A true Marxist approach to the Civil War should start not with academic analysis but with revolutionary planning. Only then can the concept of the “unfinished revolution” be fully understood and realized.

Footnotes

  1. A Marxist Assessment of Robin Blackburn’s An Unfinished Revolution, 1. (“Marx followed the military campaigns in detail, wrote extensively… organised mass working-class opposition…”)
  2. Ibid., 2. (“one of the rare men who succeed in becoming great, without ceasing to be good”)
  3. Ibid., 3. (“is not a series of disconnected errors… abandonment of the central Marxist principle…”)
  4. Ibid., 4. (“the withdrawal of federal troops, the restoration of white supremacist rule in the South”)
  5. Ibid., 5. (“a political act aimed at clarifying the stakes of the conflict for workers…”)
  6. Ibid., 6. (“an immutable racial pathology”)
  7. Ibid., 7. (“The American working class will not arrive at the construction of independent organs of struggle…”)