Inside Europe: Istanbul's mayoral election rerun — a blow to Turkey's democracy?

At the end of March, Ekrem Imamoglu shook up Turkish politics when he won elections to become the mayor of Istanbul. It was the first time in 25 years that President Erdogan's ruling party, the AKP, had lost control of the city. But Turkey's electoral board controversially ordered a rerun of the vote, putting Imamoglu at the center of an unprecedented political storm.