Egyptian President Abdel Fattah al-Sisi has threatened to send armed forces across the border with Libya, following Turkey's successful ousting of Khalifa Haftar from territory his militia held in the western part of the country. The flashpoint is Sirte, where Turkish-backed forces are deployed and possibly preparing to assault, and which Sisi has pledged to defend. To discuss the Egyptian view of the conflict in Libya, Aaron speaks with Michael Hanna, a senior fellow at the Century Foundation in New York.