This week’s Pro-Palestine protests at Columbia University led to more than 100 arrests after students barricaded themselves inside Hamilton Hall. This happened in the exact same building where anti-war student protestors demonstrated 56 years ago to the day, according to Columbia’s student newspaper. Mark Naison, a Fordham University professor of history, was part of the 1968 protests. He joins CNN Political Director David Chalian to explain why he says this week’s protests feel like ‘déjà vu,’ and why he supports today’s demonstrations. Learn more about your ad choices. Visit podcastchoices.com/adchoices