Mike Klonsky wonders whether Arne Duncan’s patronizing comments about parents and critics of high-stakes testing helped Donald Trump win the election.

When 20% of the parents in New York opted out of the state testing, he sneered at them and said they were white suburban parents who found out that their child wasn’t so bright after all. This was rank condescension.

When Duncan used Race to the Top billions to bribe states into adopting Common Core, he continued to insist that Common Core was a project of the states. He became the nation’s leading cheerleader for Common Core, and he ridiculed the critics. The critics were vociferous, especially in the Midwest.

Throughout his time in office, Duncan celebrated the successes of charter schools, wherever he could find them, and barely noticed public schools. Last month, before Massachusetts voted on Question 2, Duncan turned up in Boston to argue that expansion of charters was unquestionably a good thing. Despite his ringing endorsement, Question 2 was soundly defeated in almost every district in the state.

I don’t know whether Duncan helped Trump win by making public school parents angry, but he most certainly paved the way for the full-throated privatization that Trump is now pressing. Who would have thought that Arne Duncan and Donald Trump would be on the same team, cheering for more school choice, more charters, more privatization? Trump took it to the next level and threw in vouchers. Once you endorse school choice and launch an assault on the very principle of public education, it is hard to walk it back.