Donald Trump is set to surrender today at the federal courthouse in Miami to face charges for retaining and mishandling classified documents, including top-secret information about U.S. nuclear weapons programs. Trump’s supporters, including many prominent members of the Republican Party, have threatened violence and suggested revolt in response to what they see as a politically motivated targeting of the former president, while Trump himself has claimed to reporters that he is innocent of wrongdoing. His capture of the Republican base is the work of a “cult leader,” argues Ruth Ben-Ghiat, an expert on fascism and authoritarianism, adding that today’s GOP is an “autocratic party operating inside a democracy.” Ben-Ghiat, a professor of history and Italian studies at New York University, also discusses the death this week of former Italian Prime Minister Silvio Berlusconi, who she says helped to mainstream far-right extremism in Italian politics.