When former Florida Gov. Jeb Bush announced his candidacy in January 2015, I was enthusiastic, largely on foreign policy grounds. It seemed he might champion the sort of conservative internationalism that characterized his father’s one-term presidency. I didn’t pay much attention to his views of domestic policy, but Alec MaGillis’s New Yorker article about Bush’s enthusiasm for privatizing public education caught my eye. Before I had time to follow up, Donald Trump had elbowed him out the race. Last week Bush came to Harvard to deliver its annual Godkin Lecture. That the occasion was announced just two days ahead of time…