John Glover Roberts Jr. is the 17th Chief Justice of the United States, nominated by President George W. Bush in 2005. An institutionalist and brilliant appellate advocate before joining the bench, Roberts has spent his tenure attempting to preserve the Supreme Court’s legitimacy in an era of hyper-partisanship. However, the arrival of a 6-3 conservative supermajority has frequently marginalized his role as a centrist swing vote, pulling the Court significantly to the right of his preferred incrementalism. In the mid-2020s, Roberts authored some of the most consequential and fiercely debated opinions in American history, most notably the 2024 ruling in *Trump v. United States*, which granted presidents broad absolute immunity for official acts. As the head of the federal judiciary in 2026, he is navigating the treacherous waters of the second Trump administration, facing a deluge of emergency appeals regarding massive executive deregulation, immigration sweeps, and the unprecedented actions of the Department of Government Efficiency (DOGE). Furthermore, he has been forced to manage the severe, ongoing ethics crises engulfing his associate justices.