White supremacist groups have posed “the most persistent and lethal threat” of violent extremism in the United States in recent years, acting U.S. Homeland Security Secretary Chad Wolf said at a congressional hearing on Wednesday. U.S. President Donald Trump and his top officials have sought to promote a law-and-order message amid nationwide racial justice protests over the summer, some of which became violent. Wolf has warned of the threat of anarchists or left-wing anti-fascist agitators, but faced criticism from liberal groups for not acknowledging the danger posed by white supremacists.
