President Trump issued a strongly worded all-caps, late-night tweet after Iranian President Hassan Rouhani (right) said that war with Iran would be "the mother of all wars and peace with Iran is the mother of all peace." AP hide caption
Hassan Rouhani
Demonstrators filled the streets of Tehran on Monday to protest economic downtown in Iran. Atta Kenare/AFP/Getty Images hide caption
A protester chants slogans against the Iranian government outside the European Union Council in Brussels, Belgium on Wednesday. Francois Lenoir/Reuters hide caption
A woman in Tehran stands in front of a wall plastered with posters of Iranian President Hassan Rouhani, whose re-election bid will have its decisive moment Friday — unless, of course, the voting results in a runoff. Atta Kenare/AFP/Getty Images hide caption
Akbar Hashemi Rafsanjani, during a 2015 meeting with Germany's foreign minister in Tehran. Thomas Koehler/Photothek via Getty Images hide caption
Former Iranian President Rafsanjani, A Leading Voice For Reform, Dies At 82
Richard Ratcliffe, second from right, delivers a petition to the British prime minister's official residence calling on Iran to release his wife, Nazanin Zaghari-Ratcliffe. She was stopped in April at the airport in Tehran with the couple's 2-year-old daughter as they tried to return to Britain after a family holiday. Ratcliffe was at the United Nations this week appealing for their release. Carl Court/Getty Images hide caption
As Iran's President Touts Openness, Britons Appeal For Release Of Prisoners
People ride a horse and carriage at sunset in Isfahan's UNESCO-listed central square on June 2, 2014 in Isfahan, Iran. Isfahan, with its immense mosques, picturesque bridges and ancient bazaar, is a virtual living museum of Iranian traditional culture, and is Iran's top tourist destination. John Moore/Getty Images hide caption
An Iranian man and woman check the names of candidates before voting at a polling station in the holy city of Qom, about 80 miles south of the capital Tehran, on Friday. Long lines formed and voting was extended as Iranians cast ballots in an election test for President Hassan Rouhani, who hopes to curb conservative dominance after a nuclear deal with world powers. Behrouz Mehri/AFP/Getty Images hide caption
Ahead of a press conference with Premier Matteo Renzi and Iranian President Hassan Rouhani, wooden panels were erected around some Roman statues in Rome's Capitoline Museums. Giuseppe Lami/AP hide caption
What Might Rouhani Have Missed When Rome Boxed Up The Nudes?
Iranian President Hassan Rouhani opens a book he gave to Pope Francis as a gift at the Vatican on Tuesday. Rouhani is the first Iranian leader to meet with the pope since 1999. With sanctions against Iran falling away, Rouhani also announced business agreements with Italy as part of his visit to Europe. Andrew Medichini/AFP/Getty Images hide caption
Iranian President Hassan Rouhani (left) meets Italian President Sergio Mattarella at the presidential palace in Rome on Monday. With many international sanctions against Iran lifted, Rouhani has become the first Iranian president to tour Europe since 1999. Gregorio Borgia/AP hide caption
Iran's President Hassan Rouhani prepares to speak with NPR's Steve Inskeep on Saturday in New York City. Rouhani spoke about the recent nuclear deal between the United States and Iran. Bryan Thomas for NPR hide caption
U.S. Secretary of State John Kerry goes for a stroll along the shore of Lake Geneva on Sunday prior to renewed nuclear negotiations in Geneva with his Iranian counterpart. Fabrice Coffrini/AFP/Getty Images hide caption
Low-income Iranians line up to receive food supplies in south Tehran. Iran remains an economy of subsidies, although some direct cash payments have been replaced by food baskets for the poor. Davoud Ghahrdar/AFP/Getty Images hide caption
Iran's Hope Is Sanctions Relief, But Reality Is Struggling Economy
Iranian girls show their hands, marked with the words "Down with USA," at Monday's demonstration in Tehran. Abedin Tahrkenareh/EPA/LANDOV hide caption
On 'Morning Edition': 'New York Times' Tehran Bureau Chief Thomas Erdbrink speaks with NPR's Steve Inskeep
Catherine Ashton, the EU high representative for foreign affairs, and Iranian Foreign Minister Mohammad Javad Zarif share a light moment Tuesday at the start of two-day talks on Iran's nuclear program. Fabrice Coffrini/AP hide caption
Two Iranian textile merchants wait for customers in Tehran's main bazaar. President Hassan Rouhani has raised hopes by reaching out to the West and promising to work for an end to sanctions. But his team has cautioned that the country's economic problems have deep roots. Vahid Salemi/AP hide caption
Iran's Leaders Send Sobering Message: No Quick Economic Fix
Israeli Prime Minister Benjamin Netanyahu speaks during the United Nations General Assembly on Tuesday in New York City. Andrew Burton/Getty Images hide caption
Iran's President Hassan Rouhani waves as his motorcade leaves Tehran's Mehrabad Airport upon his arrival from New York Saturday, one day after he spoke to President Obama by phone. Atta Kenare/AFP/Getty Images hide caption
Iranian President Hassan Rouhani at the U.N. on Tuesday. Ray Stubblebine/Reuters/Landov hide caption
On 'Morning Edition': Diplomat Ryan Crocker on his meetings with Iranian officials
President Obama addresses the 68th session of the United Nations General Assembly at the United Nations in New York. Timothy Clary/AFP/Getty Images hide caption
Iranian President Hassan Rouhani during an interview with NBC — part of a charm offensive ahead of his visit to the U.N. General Assembly. Rouzbeh Jadidoleslam/AP hide caption
On 'Morning Edition': NPR's Michele Kelemen previews the opening of the U.N. General Assembly
Iranian President Hassan Rouhani talks to NBC — part of a charm offensive ahead of his visit to the U.N. General Assembly in New York next week. Rouzbeh Jadidoleslam/AP hide caption