Republican senators' open letter to Iran sparks fierce Twitter spat

Forty-seven Republican senators signed their names to an open letter to Iran on Monday, emphasizing that once President Barack Obama leaves office, any deal made with Iran on the country's nuclear deescalation during his tenure would not hold.

The letter also kicked off an international Twitter slap-fight between the senator behind the controversial letter and the leaders of Iran

See also: Iran's skyrocketing crystal meth addiction

The letter, addressed to the "Leaders of the Islamic Republic of Iran," was written by Sen. Tom Cotton of Arkansas and delved into the differences between any agreement made between the U.S. president and Iranian leaders regarding a Senate-ratified treaty Read more...

More about Twitter, Senate, Iran, Us World, and Us