What does Principal Wilson do that is seen as a betrayal by both Liz and Amanda in the novel, You Should See Me in a Crown?

Campbell High’s principal Wilson represents disappointment and betrayal for Liz and Amanda. When they see an adult figure in a position of power at the school, they should believe this is somebody that they can count on to look out for them. Principal Wilson, however, allows Rachel to racially abuse Liz and hang posters with insensitive and offensive slogans.