Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. Iran Dismisses US Sanctions, Says Calls for Dialogue Not Serious VOA News Iranian officials on Tuesday dismissed new U.S. sanctions as putting an end to any diplomatic path for resolving tensions between the two countries, and further described U.S. overtures for dialogue as disingenuous. U.S. President Donald Trump issued the economic sanctions Monday against Iranian Supreme Leader Ayatollah Ali Khamenei and eight senior commanders in the Iranian military and the Islamic Revolutionary Guards Corps. He called on the Iranian government to "change its destructive behavior, respect the rights of its people, and return in good faith to the negotiating table." U.S. National Security Adviser John Bolton said Tuesday during a visit to Jerusalem that Trump "has held the door open to real negotiations," and that Iran has responded with what he called "deafening silence." WATCH: US 'hard-hitting' sanctions on Iran .