Kristinn,
International ANSWER, World Can’t Wait, United For Peace and Justice, the Workers World Party, The Revolutionary Communist Party, Al Awda, DC DAWN, and SDS are all urging their members to go to this rally, and are co sponsors.
U.S. progressives meet with Iranian President Mahmoud Ahmadinejad
http://www.freerepublic.com/focus/f-bloggers/2597143/posts