Turkish president Recep Tayyip Erdogan:  “After the failed coup attempt last July, he started a large-scale purge of his “enemies”, arresting 45,000 people and firing or suspending 130,000. But he has 10 straight victories at the polls since 2002, and there is no doubting his popularity.” File photograph:  Adem Altan/AFP/Getty Images

One of the first congratulatory calls Recep Erdogan received on Monday , after his successful constitutional crusade, was from Donald Trump, no less. (...)