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Communications of the ACM

ACM Opinion

Obama's Top Scientist Talks Shrinking Budgets, Donald Trump, and His Biggest Regret

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John Holdren, White House

John Holdren is the longest-serving presidential science adviser in US history.

Credit: Greg Kendall-Ball/Nature

John Holdren is no stranger to the spotlight. Over his long career in science, Holdren—a physicist by training—has worked on controversial issues such as climate change and nuclear non-proliferation.

From Nature
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