00:31 - Source: CNN
Iranian Foreign Minister fires back at Sen. Tom Cotton
CNN —  

Sen. Tom Cotton threw down the gauntlet Wednesday, taking aim at one of his favorite Twitter nemeses – Iranian Foreign Minister Mohammad Javad Zarif.

The latest blows in their very public battle came after Zarif make a joke at Cotton’s expense while speaking to a crowd at New York University.

Asked how soon Iran expects sanctions relief under a nuclear agreement with the U.S. and it’s allies, Zarif wrapped his answer with a swipe at the freshman senator, prompting laughter from the audience, and from moderator David Ignatius of The Washington Post.