article_snippet: Ayatollah Khamenei also criticized a letter sent by 47 U.S. Republican senators to Iran's leaders, which threatened to scupper any deal if a Republican President is elected next year, Iran's official Press TV reported.
article_snippet: Ayatollah Khamenei suggested that a letter sent by U.S. Republican senators to Iran was part of a U.S. strategy of last-minute reversal aimed at undermining a comprehensive deal covering Iran's nuclear ambitions, Iran's official Press TV said.
article_snippet: The Republican senators' decision to write to Iran's leaders has stirred up a political firestorm in the United States.
article_snippet: U.S. Secretary of State John Kerry denounced the letter Wednesday at a Senate Foreign Relations Committee hearing, calling the letter a breach of "more than two centuries of precedent" and factually incorrect.
article_snippet: It purports to tell the world that if you want to have any confidence in your dealings with the United States, they have to negotiate with 535 members of Congress," U.S. Secretary of State John Kerry said.
article_snippet: Sen. Tom Cotton, a freshman Republican from Arkansas, penned the letter, which asserted that a lasting agreement would need congressional support.
article_snippet: Sen. Tom Cotton, a freshman Republican from Arkansas wasn't shy about Sen. Tom Cotton, a freshman Republican from Arkansas attempts to undermine the Obama administration's negotiations with Iran and said Tuesday that the letter is "about stopping Iran from getting a nuclear deal.
article_snippet: Hillary Clinton blasts Cotton Iran letter .
highlights_snippet: Ayatollah Khamenei also criticizes a letter sent by U.S. Republican senators to Iran .