Nine months later, a 21-year-old white man is accused of opening fire in a Walmart in El Paso, killing 20 people and injuring dozens more after writing a manifesto railing against immigration and announcing that “this attack is a response to the Hispanic invasion of Texas.”
The suspect wrote that his views “predate Trump,” as if anticipating the political debate that would follow the blood bath. But if Mr. Trump did not originally inspire the gunman, he has brought into the mainstream polarizing ideas and people once consigned to the fringes of American society.