In this Oct. 15, 2019, photo, Donald Trump Jr. speaks to supporters of his father, President Donald Trump, during a panel discussion in San Antonio. Trump Jr.'s appearance Sunday, Nov. 10, at the University of California, Los Angeles, to talk about his new book on liberals and free speech was marked by an argument between him and the audience over why he would not take questions, the Guardian newspaper reported. (AP Photo/Eric Gay)Francisca Vergara, right, yells anti-Trump slogans with protesters during a demonstration outside UCLA's Moore Hall where Donald Trump Jr. was expected to speak while on tour for his new book "Triggered," in Los Angeles, Sunday, Nov. 10, 2019. (Brian van der Brug/Los Angeles Times via AP)
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In this Oct. 15, 2019, photo, Donald Trump Jr. speaks to supporters of his father, President Donald Trump, during a panel discussion in San Antonio. Trump Jr.'s appearance Sunday, Nov. 10, at the University of California, Los Angeles, to talk about his new book on liberals and free speech was marked by an argument between him and the audience over why he would not take questions, the Guardian newspaper reported. (AP Photo/Eric Gay)
