 Iran's new president, Ibrahim Raisi, is to be sworn into office after the June election. Mr Raisi, a hardline critic and cleric, I beg your pardon, succeeds Hassan Rouhani, seen in the West as a relative moderate. It comes as a time of growing challenges for Iran, whose economy has been crippled by U.S.-led sanctions. There are also heightened tensions with foreign powers who have blamed Iran for a deadly drone attack on a tanker near Oman last week which Iran has denied.