Bragging, complaining, criticizing. Donald Trump’s rhetoric is a drastic departure from that of past US presidents. In this episode, “When Experts Attack!” correspondent Rick Hellman speaks with guest Robert Rowland about Trump’s rhetorical departure and what it means for the 2020 election cycle. Rowland — a professor of communication studies who specializes in the rhetorical legacies of presidents Ronald Reagan and Barack Obama — is author of “Analyzing Rhetoric: A Handbook for the Informed Citizen in a New Millennium,” published last year, and a recent article in the journal Rhetoric & Public Affairs entitled “The Populist and Nationalist Roots of Trump’s Rhetoric.”