David Sirota’s The Lever posted an important article about a hedge fund billionaire who hopes to redefine the Democratic Party. I thought I had heard of all the billionaires who were trying to remodel education to their own specifications, but I had never come across Steve Mandel.

Like many other billionaires, Mandel’s great passion is charter schools. He has poured millions of dollars into political campaigns, trying to elect candidates who share his values. His great hope appears to be to block candidates who are progressives and who are pro-union.

The article, by Katya Schwerin and Luke Goldstein, traces Mandel’s rise, from his elite schooling at