Can Europe risk challenging Erdogan?

Turkey’s President Erdogan has had the mayor of Istanbul Imamoglu arrested. The EU condemns the arrest but stops short of threatening any action. In this episode DW’s Michaela Küfner asks whether Europe can afford standing up to Erdogan? Her guests, Can Merey (RND) and former EU ambassador to Turkey Marc Pierini map out why Germany and Europe are so highly dependent on Erdogan.