Get the latest news on incumbent Iranian President Hassan Rouhani, who has been the leader of Iran since 2013. Hassan Rouhani is a former lawyer, Islamic cleric, and diplomat. Find the news and details on the background and former career of Hassan Rouhani. While being a Secretary of the Supreme National Security Council in 1989 – 2005 Hassan Rouhani was Iran’s top negotiator on nuclear technology in Iran with UK, Germany and France. Get the news and updates on the crucial Iran nuclear deal framework, recently abandoned by the US and its President Donald Trump.