This article is part of The D.C. Brief, TIME’s politics newsletter. Sign up here to get stories like this sent to your inbox. Former President Donald Trump used his turn before the nation’s largest professional association of Black journalists to question the racial identity of his rival for the White House this fall, telling a shocked National Association of Black Journalists conference in Chicago that Vice President Kamala Harris “happened to turn Black and now she wants to be known as Black.” [time-brightcove not-tgx=”true”] It took Trump all of 10 days running in a head-to-head against the first woman and first incumbent of Black and Indian-American heritage to openly question her background. “I don’t know.