The similarities between President-elect Donald Trump and former Italian Prime Minister Silvio Berlusconi are striking. Beppe Severgnini, columnist for Corriere della Sera, a contributing opinion writer to The New York Times and the author of many books, including Mamma Mia!: Berlusconi Explained for Posterity and Friends Abroad (Rizzoli Ex Libris, 2011), shares his advice for Americans under the Trump presidency.