The topic: School accountability measures that rely on high-stakes testing to determine which students are learning, which educators are teaching and which schools are working.
Bush supports the tests, Damon opposes them. More on how their paths crossed in a minute.
First, take it from someone who taught for four years as a substitute teacher in my old school district in Central California and who has written about education reform for more than two decades: Many educators don't want to advertise to the world how well their students are doing academically because, from there, it's a short walk to grading teacher performance.
That is what accountability is all about. You probably have it in your job. I have it in mine. But a lot of public school teachers want nothing to do with it.