In William Howard Taft's Constitutional Progressivism Kevin J. Burns makes a compelling case that Taft's devotion to the Constitution of 1787 contributed to his progressivism. In contrast to the majority of scholarship, which has viewed Taft as a reactionary conservative because of his constitutionalism, Burns explores the ways Taft's commitment to both the Constitution and progressivism drove his political career and the decisions he made as president and chief justice. Taft saw the Constitution playing a positive role in American political life, recognizing that it created a national government strong enough to enact broad progressive reforms.

In reevaluating Taft's career, Burns highlights how Taft rejected the "laissez faire school," which taught that "the Government ought to do nothing but run a police force." Recognizing that the massive industrial changes following the Civil War had created a plethora of socioeconomic ills, Taft worked to expand the national government's initiatives in the fields of trust-busting, land conservation, tariff reform, railroad regulations, and worker safety laws. Burns offers a fuller understanding of Taft and his political project by emphasizing Taft's belief that the Constitution could play a constructive role in American political life by empowering the government to act and by undergirding and protecting the reform legislation the government implemented. Moreover, Taft recognized that if the Constitution could come to the aid of progressivism, political reform might also redound to the benefit of the Constitution by showing its continued relevance and workability in modern America.

Although Taft's efforts to promote significant policy-level reforms attest to his progressivism, his major contribution to American political thought is his understanding of the US Constitution as a fundamental law, not a policy-oriented document. In many ways Taft can be thought of as an originalist, yet his originalism was marked by a belief in robust national powers. Taft's constitutionalism remains relevant because while his principles seem foreign to modern legal discourse, his constitutional vision offers an alternative to contemporary political divisions by combining political progressivism-liberalism with constitutional conservatism.