Michael Rubin, a senior research fellow with the American Enterprise Institute, said he feared the IRGC designation "might exculpate the rest of the regime when, in reality, the IRGC's activities cannot be separated from the state leadership of Supreme Leader Khamenei or President Ahmadinejad". The Iranian newspaper "Kayhan" quoted the commander of Iran's elite Revolutionary Guards as threatening to deal heavier blows against the United States in response to the designation. Mohammad Khatami, former Reforms Front Iranian President hoped to "remind those in the U.S. Congress or elsewhere working for the benefit of the American nation to stand against these measures or the wall between the two countries grow taller and thicker".