Gary LaFree is the founding director of the National Consortium for the Study of Terrorism and Responses to Terrorism at the University of Maryland. He created the Global Terrorism Database.

Seth Jones is a counterterrorism expert with the Center for Strategic and International Studies. Media contact is H. Andrew Schwartz.

John E. Finn is a professor emeritus of government at Wesleyan University in Middletown, Connecticut. He wrote “Fracturing the Founding: How the Alt-Right Corrupts the Constitution.”

Michael German is a fellow with the Brennan Center for Justice’s Liberty & National Security Program and a former FBI agent who infiltrated neo-Nazi terrorist groups as an undercover agent. Media contact is Mireya Navarro.

Amy Cooter, a sociology lecturer at Vanderbilt University, researches nationalism.

Mark Bray, a history lecturer at Rutgers University, is the author of “Antifa: The Anti-Fascist Handbook.”

Ruth Ben-Ghiat is a history and Italian studies professor at New York University. She studies fascism and her upcoming book is “Strongmen: From Mussolini to the Present.”

Kathleen Belew, a history professor at the University of Chicago, is the author of “Bring the War Home: The White Power Movement and Paramilitary America.”