The Constitution Restoration Initiative (CRI) is an organization that is trying to reign in what it sees as a an all too powerful federal government. It's main objective is to try to get the states to call for a constitutional convention, where new amendments that supported states rights could be proposed and then hopefully ratified.
This sort of a movement is typically associated with a conservatives and even ultra-conservatives. Often these movements are portrayed as just another another attempt by conservatives to cut taxes and cut federal programs that help those less fortunate then themselves.