Why Did Facebook Fire a Top Executive? Hint: It Had Something to Do With Trump

Palmer Luckey, co-founder of virtual-reality pioneer Oculus, was ousted after his political activity sparked a furor within the social-media giant and Silicon Valley

Facebook Inc. executive and virtual-reality wunderkind Palmer Luckey was a rising star of Silicon Valley when, at the height of the 2016 presidential contest, he donated $10,000 to an anti-Hillary Clinton group.

His donation sparked a backlash from his colleagues. Six months later, he was out. Neither Facebook nor Mr. Luckey has ever said why he left the social-media giant. When testifying before Congress about data privacy earlier this year, Facebook Chief Executive Mark Zuckerberg denied the departure had anything to do...