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Michael Sonnenfeldt

Stay informed with Michael Sonnenfeldt’s coverage and analysis.

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Commentary
Ginsburg and Biden’s blind spot: when leaders don’t know when to leave
By Michael SonnenfeldtJuly 19, 2026
sonnenfeldt
Commentary
I exited one of the NYC area’s biggest real estate deals at 31. Here’s what I learned
By Michael SonnenfeldtMarch 12, 2026
It took 30 years for climate tech investments to pay off. Now they’re best placed to survive the VC winter
Commentary
It took 30 years for climate tech investments to pay off. Now they’re best placed to survive the VC winter
By Michael SonnenfeldtJuly 26, 2023
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Economy
U.S. Treasury is paying $3 billion a day in interest on national debt, says the CBO—having spent $10 billion to prop up the currency of its top lenderplaceholder alt text
By Eleanor PringleAugust 11, 2026
Success
Steve and Connie Ballmer are splitting their $8 billion philanthropy into three so the people closest to the work can decide how the money is spentplaceholder alt text
By Sydney LakeAugust 11, 2026
North America
Google cofounder Sergey Brin has now spent $100 million to fight California’s proposed billionaire tax—he could owe $13 billion if he losesplaceholder alt text
By Sasha RogelbergAugust 11, 2026
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