Ali Shamkhani says the different voices coming out of the US show the lack of coherence in the country to make political decisions regarding the Vienna talks.
Shamkhani added in a tweet that Washington cannot pay for its internal disputes by violating the rights of the Iranian people.
Shamkhani’s tweet comes as reports say US Republican Senator Ted Cruz, a member of the Senate Foreign Relations Committee, sent a letter to President Joe Biden co-signed by 32 senators rebuking the administration’s negotiations for a deal with Iran.
In the letter, the lawmakers say a law dubbed “The Iran Nuclear Agreement Review Act (INARA)” requires the president to submit any Iran deal to Congress – and they will block implementation of any deal not submitted.
Talks between Iran and the P4+1 group of countries, Russia, China, France, Britain and Germany, resumed in Vienna on Tuesday.
Iran says it seeks a good and prompt deal in the negotiations, reiterating all anti-Tehran sanctions must be lifted.