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Politics & World • Supreme Court

John Roberts

John G.

By Ethan Anderson| Reviewed by Olivia Bennett, Standards & Fact-Checking Lead| Updated July 26, 2026|2 min read| Fact-checked

John G. Roberts Jr. is the seventeenth and current Chief Justice of the United States, having joined the Supreme Court in 2005. He is widely described as a conservative jurist who has also sometimes taken a more institutional or moderate approach in major cases. Before becoming chief justice, he worked as an appellate lawyer, held posts in Republican administrations, and served on the U.S. Court of Appeals for the D.C. Circuit.

Early life and education

John Roberts was born in Buffalo, New York, in 1955 and grew up in Indiana. He attended Harvard College and Harvard Law School, graduating with high academic distinction.

Roberts clerked for federal judges, worked in the Reagan administration, served as Principal Deputy Solicitor General, and practiced appellate law in Washington, D.C. He argued many cases before the Supreme Court before becoming a judge.

Supreme Court tenure

Roberts was appointed to the Supreme Court by President George W. Bush in 2005 and became chief justice the same year after Chief Justice William Rehnquist died. He has presided over major rulings on the Affordable Care Act, affirmative action, same-sex marriage, and presidential immunity.

Judicial approach

Roberts is generally associated with the Court’s conservative wing, but his decisions often reflect attention to institutional legitimacy and the Court’s public standing. Commentators have often described him as a key swing or stabilizing vote in closely divided cases.

Key facts

  • Roberts was confirmed by the U.S. Senate on September 29, 2005, by a vote of 78–22.
  • He became the youngest chief justice since John Marshall in 1801.
  • He served as a judge on the U.S. Court of Appeals for the District of Columbia Circuit from 2003 to 2005.
  • Before his judicial appointment, he worked in private practice and in several Republican administrations.
  • He has written major Supreme Court opinions on issues including health care, affirmative action, and presidential immunity.

Frequently asked questions

Who is John Roberts?
John G. Roberts Jr. is the Chief Justice of the United States Supreme Court, appointed in 2005 and serving since then.
When was John Roberts born?
He was born on January 27, 1955.
Which president appointed John Roberts?
President George W. Bush appointed Roberts to the Supreme Court and later nominated him for chief justice.
When did John Roberts become chief justice?
He joined the Court as Chief Justice on September 29, 2005.
What is John Roberts known for?
He is known for leading the Supreme Court and for major opinions involving health care, affirmative action, and presidential immunity.
What is John Roberts’s educational background?
He earned an A.B. from Harvard College and a J.D. from Harvard Law School.

References

  1. Justia Supreme Court Centerhttps://supreme.justia.com/justices/john-g-roberts-jr/
    Supports: Birth date, education, appointment date, confirmation vote, and service as Chief Justice.
  2. Encyclopaedia Britannicahttps://www.britannica.com/biography/John-G-Roberts-Jr
    Supports: Career background, nomination history, and institutionalist reputation.
  3. SCOTUSbloghttps://www.scotusblog.com/justices/john-roberts/
    Supports: Biographical details, clerkships, government service, and appointment to Chief Justice.
  4. Biography.comhttps://www.biography.com/legal-figures/john-roberts
    Supports: Education, confirmation, age at appointment, and major Court role.