The Intricate Dynamics of Supreme Court Alliances: Lessons from Justices Black and Harlan II


In the intricate landscape of the U.S. Supreme Court, judicial alliances often defy straightforward categorization, as evidenced by historical cases where ideological lines become blurred. A poignant example is the relationship between Justices Hugo Black and John Marshall Harlan II, whose judicial philosophies and personal backgrounds contributed to an unexpected alliance with complex implications for American jurisprudence.

Hugo Black, an Alabama-born former Ku Klux Klan member turned New Dealer, built his career on textualism, the philosophy that constitutional interpretation should adhere strictly to the text. Black’s decisions often aligned with progressive outcomes because he adhered to a strict reading of constitutional provisions like the First Amendment. Conversely, John Marshall Harlan II’s background as a patrician with a pedigree in legal craftsmanship led him to a more flexible approach, valuing judicial discretion within the historical and societal context, a perspective sometimes aligned with living constitutionalism. Their association highlights the Supreme Court’s fluid ideological landscape.

The landmark case Griswold v. Connecticut in 1965 serves as a critical illustration. Justice Harlan, often labeled a conservative, broke ranks by emphasizing the due process clause of the Fourteenth Amendment to argue for a tradition of liberty encompassing unenumerated rights. This positioned him with the majority to invalidate an antiquated Connecticut law banning contraception. Starkly, Justice Black, typically viewed as a progressive, dissented, arguing that constitutional protections must be explicitly outlined in the text to avoid judicial overreach.

Their contrasting approaches in Griswold and other cases reflected the nuanced dynamics at play within the Court, transcending the simple conservative-progressive dichotomy. For instance, while Black joined the majority in protecting freedom of press in New York Times Co. v. United States, Harlan dissented based on national security concerns, emphasizing how judicial philosophies, not partisan affiliations, often drive decisions.

Today, the legacy of these judicial “bedfellows” informs debates on constitutional interpretation. The 2022 decision in Dobbs v. Jackson Women’s Health Organization reflects elements of their influence, with the Court emphasizing historical tradition as a guide for interpreting the due process clause—a nod to Harlan’s methodology but with boundaries reminiscent of Black’s concerns about judicial latitude. Revisiting historic Supreme Court decisions serves as a reminder of the complex and evolving nature of judicial interpretation, detailed further in a comprehensive examination here.

Ultimately, the Supreme Court’s history underscores that judicial philosophy, more than political allegiance, often shapes the constitutional landscape, allowing justices to surprise—including forging alliances unfettered by conventional ideological constraints.