Only one Supreme Court Justice has ever served longer than Clarence Thomas

The first baby boomer on the Supreme Court hit a milestone on Thursday, becoming the second-longest serving justice in history at a time when his influence has never seemed greater.

Once an outlier on the nation’s highest court, Justice Clarence Thomas has become a towering figure in the conservative legal movement over the last decade as he helped secure landmark rulings on abortion, voting and Second Amendment rights.

The only justice with a longer tenure is liberal William O. Douglas. Thomas would overtake Douglas in 2028 if he remains on the court — and there’s no sign he plans to retire anytime soon.

“I think he’s more energized and excited now than when I first met him,” said John Yoo, a law professor at the University of California, Berkeley, who served in Republican President George W. Bush’s administration after his time as a Thomas clerk three decades ago.

Thomas was confirmed in 1991 after contentious hearings that included sexual harassment allegations. More recently, his acceptance of luxury trips has raised a storm of ethics questions. He’s nevertheless gone from near-silence at oral........

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