U.S. Vice President Joseph Biden visits Turkey, Ukraine marks twenty five years as an independent nation, and the Rio Olympics come to an end.

Donald Trump is sworn into office, Detroit hosts an auto show, and Turkey's state of emergency continues.

U.S. Secretary of State Rex Tillerson visits Turkey, Hong Kong elects a new chief executive, and the sixtieth anniversary of the signing of the Treaty of Rome is marked.

The political crisis in Venezuela unfolds and Turkey's constitutional referendum takes place.

Zenko is joined by Steven A. Cook, CFR's Eni Enrico Mattei senior fellow for Middle East and Africa studies. They discuss Cook's latest book, False Dawn, and U.S. policy in the Middle East and North Africa.