Nuclear program of Iran
U.S. President Obama reportedly sent a letter dated 20 April 2010 to President Lula of Brazil, in which he outlined a proposal of fuel swap. While expressing skepticism that the Iranians would now be willing to accept such a deal, having provided "no credible explanation" for the previous deal's rejection, President Obama wrote "For us, Iran’s agreement to transfer 1,200 kg of Iran’s low enriched uranium (LEU) out of the country would build confidence and reduce regional tensions by substantially reducing Iran’s LEU stockpile." Turkish Prime Minister Recep Tayyip Erdogan received a similar letter. A senior U.S. official told the "Washington Post" that the letter was a response to Iran's desire to ship out its uranium piecemeal, rather than in a single batch, and that during "multiple conversations" U.S. officials made clear that Iran should also cease 20% enrichment; however, the official stated "there was no president-to-president letter laying out those broader concerns".
Second inauguration of Hassan Rouhani
The inauguration of Hassan Rouhani as the 7th President of Iran for his second term took place in two rounds, first on Thursday 3 August 2017, when he received his presidential precept from Supreme Leader Ali Khamenei, and second on Saturday 5 August, when he was sworn into office in the Parliament of Iran. This marked the commencement of the second four-year term of Hassan Rouhani as president and his vice president. The oath of office was administered by Chief Justice Sadeq Larijani.