thrilled they had elected the moderate president hasan rouhani to a second term. he promised them more cooperation and expanded ties with the west including the u.s. >> when 800 miles away in saudi arabia, president trump spoiled the party. >> iran funds arms and terrorists, militias and other extremist groups that spread destruction and chaos across the region. >> reporter: iran, he said, should be isolated. scathing local media here dismissed president trump as a sales rep for american arms manufacturers. referring to this, one paper wrote for $100 billion president trump is dancing to the saudi tune. today we ask a relaxed looking president rouhani for his reaction. >> will iran respond to the u.s. multibillion dollar arms sales announced by president trump to saudi arabia with an arms build-up of its own. >> arms don't make a country strong, said rouhani, the ballot box does. >> reporter: and as mr. trump was visiting the region, 45 million iranians voted. >> that's an option, he added, the people of saudi arabia certainly don't have. there is one fangs here i