The POTUS Timeline
President #27

William Howard Taft

William Howard Taft (1857–1930) served as the 27th President of the United States from 1909 to 1913. A Republican jurist and administrator, he later became Chief Justice of the U.S. Supreme Court, the only person to hold both offices.

Legacy Summary

As president, Taft pursued a conservative, law‑based approach to reform: he vigorously enforced antitrust laws, supported federal conservation and the Bureau of Mines, and signed the controversial Payne‑Aldrich Tariff, which deepened splits with progressive Republicans.

After leaving the White House, Taft returned to public service as Chief Justice of the United States (1921–1930). His nine years on the Court cemented his reputation as a dedicated jurist and made him unique in American history for holding the nation’s two highest offices.

Notable Actions

Enforced antitrust laws with numerous trust prosecutions, including actions against Standard Oil and U.S. Steel; Signed the Payne‑Aldrich Tariff, provoking a split with progressives; Established the U.S. Children's Bureau (1912); Created the Bureau of Mines and promoted federal conservation administration; Later served as Chief Justice of the U.S. Supreme Court, the only person to serve as both President and Chief Justice

Timeline Entries

Key highlights and dated events associated with this presidency.

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President Taft signs the MannElkins Act
June 18, 1910 William Howard Taft
Legislation

President Taft signs the MannElkins Act

President Taft signed the MannElkins Act, which strengthened the Interstate Commerce Commission and extended federal regulatory authority to telephone and telegraph companies.

President Taft signs the Mann–Elkins Act
June 18, 1910 William Howard Taft
Legislation

President Taft signs the Mann–Elkins Act

President Taft signed the Mann–Elkins Act, expanding the Interstate Commerce Commission's authority over railroads and extending regulation to telephone and telegraph companies while creating the Commerce Court.

First Annual Message to Congress
December 7, 1909 William Howard Taft
Speech

First Annual Message to Congress

President William H. Taft delivered his first annual message to Congress outlining priorities including tariff revision, enforcement of antitrust laws, and conservation of public lands.