William Howard Taft was the only U.S. president to later serve on the Supreme Court as Chief Justice.

Quick Scoop

  • The answer to “who was the only president to serve on the Supreme Court” is William Howard Taft.
  • He was the 27th president of the United States, serving from 1909 to 1913.
  • After his presidency, he achieved his long-time ambition and became the 10th Chief Justice of the United States in 1921.
  • Taft is still the only person in U.S. history to have held both the presidency and a seat on the Supreme Court.

In other words, if you’re ever asked which president sat on the Supreme Court, the one (and only) name you need is William Howard Taft.

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