Some liberals then drew the conclusion that the election of Obama represented the emergence of a post racial society. They were, of course, dead wrong, but, Obama, at the time, as president would have featured prominently in educational materials and classrooms as a face kids could recognize (and perhaps admire–one day, with hard work, and determination, you too could become leader of the free world, the greatest of all primates.)
Then trump came along and demonstrated that racism was a proven vote getter, and post racialism was shown to be an illusion)