Genocide must be stopped by the Iranian people, US administration is responsible for foreign policy, not Congress.  While Iran has been going through its current political crisis, President Obama has kept a low profile and resisted overt criticism of Iran's government. This stance supports the Iranian people while making it hard for its rulers to blame its problems on the US.  Some members of Congress, on the other hand, have rushed to condemn the election results and Iranian government leaders without considering how their comments could hurt the very people they are trying to help.