Corey DeAngelis, an education researcher known for his vigorous advocacy of school choice, has been fired by his primary employer, the American Federation for Children (AFC), a person familiar with the situation tells Reason. (DeAngelis is also a senior fellow at the Reason Foundation, which publishes this website.) DeAngelis regularly feuds on social media with supporters of the education status quo, including Democratic politicians, media figures, and teachers union leader Randi Weingarten. But he is currently at odds with some allies who have turned on him following revelations that he prev…