According to research by the Southern Poverty Law Center, the number of hate groups has been increasing rapidly since 2000. Heidi Beirich, director of the Center’s Intelligence Project, links the rise in recruitment to the 2000 census that predicted whites would be a minority by 2042. Beirich says there’s been another spike following the election of Donald Trump, particularly among alt-right organizations who have attached themselves directly to the current president. In an interview filmed at the 2017 Aspen Ideas Festival, Beirich says that Trump’s limited commentary on hate crimes shows his lack of concern.

We want to hear what you think about this article. Submit a letter to the editor or write to letters@theatlantic.com.