elgin us to talk about his latest back called lsht "#republic" divided democracy in the age of social media. we're glad you've joined us. conversation whereas katzenstein in just a moment. ♪ >> and by contributions to your pbs station from viewers like you. thank you. >> katzenstein is a harvard law professor and author and essayist. his latest text is the called #"#republic" divided democracy in the age of social media." he joins us tonight from boston. good to have you back on the program tonight. >> the nice to be here. >> before i get into the splt #"#republic" text, it's not lost on me one of your other books which i have is "the world according to star wars." this as we all know is the 40th anniversary of "star wars." i want to ask you specifically about the travel ban that president trump reinstated today. for those following the news know that he reinstated the travel ban 2.0. he's reinstated the ban for all other refugees. whether or not there's something our government ought to learn from stars 40 years later. insulate "star wars" is a very effective warning about the risks

elgin us to talk about his latest back called lsht "#republic" divided democracy in the age of socialonversation whereas katzenstein in just a moment. ♪