November 3, 2025

In a shocking turn of events, Setti Warren, the well-loved former Mayor of Newton, Massachusetts, has passed away suddenly at his home on Sunday. The Harvard Kennedy School, where he served as Director at the Institute of Politics, confirmed the tragic news. Warren was only 55 years old. The cause of Setti Warren's death has not been shared publicly. Multiple sources, including local politicians and the Harvard Kennedy School, revealed only that his passing was "sudden" and occurred at his home. The exact circumstances remain undisclosed. The Harvard Kennedy School’s statement said, “We write today with profound sadness to share that Setti Warren, Director of the Institute of Politics, has passed away. Setti was a beloved member of our community, and we are devastated by this heartbreaking news.” Setti Warren was a prominent Democrat who served two terms as Mayor of Newton from 2010 to 2018. His leadership earned him statewide attention when he announced his run for Governor of Massachusetts in 2017, though he later withdrew from the race. As news spread, tributes poured in from the Democratic political world. Massachusetts Senator Elizabeth Warren tweeted, “I’m saddened to hear about Setti Warren. Massachusetts lost a light today. Setti was a true public servant. I’m thinking of him and his family.” Similarly, Katherine Clark, Democratic whip at the U.S. House of Representatives, expressed heartfelt sorrow: “I am devastated to hear about the passing of @HarvardIOP’s Director, Setti Warren. He was a beloved teacher, mentor, and leader. As former Mayor of Newton, he inspired students to love and participate in public service. Setti will be missed by so many. I am praying for his family during this difficult time.” Setti Warren was married to Elizabeth Tasker Plummer since 2006, and they had one daughter named Abigail Warren. His sudden departure leaves a big void in both his family and the political community he served so passionately. Massachusetts and the wider political family now mourn a bright star gone too soon. The memories of Setti Warren’s dedication and leadership will live on as a beacon of public service.

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Tags: Setti Warren, Newton Mayor, Harvard Kennedy School, Sudden death, Massachusetts Politics,