Many constitutional systems around the globe have been tested in 2016 including in Turkey, Poland, the UK, the U.S.

Many constitutional systems around the globe have been tested in 2016. Turkey, Poland, the UK, the U.S. — each case sheds some light on how different constitutional arrangements respond to the challenges of political factions. Begin with the worst constitutional crisis, the one that is taking place in Turkey in the aftermath of a coup attempt…