Full disclosure: I lacked the stomach to watch the whole thing, and anyway the television in the house was in intensive use (Gilmore Girls). But I caught the end, where Bush was talking about how America was the place of ‘big dreams’. From memory: “The abolition of slavery seemed like a big dream, until it happened.”
(I thought – yes, about 60 years after almost every other jurisdiction in the world and all the suffering and death implied there. And of course, the fact that every reference Bush makes to abolition is actually a coded message to his anti-abortion constituency).