A congressional caucus is a group of members of the United States Congress that meets to pursue common legislative objectives. Formally, caucuses are formed as congressional member organizations (CMOs) through the United States House of Representatives and governed under the rules of that chamber. In addition to the term caucus, they are sometimes called coalitions, study groups, task forces, or working groups. Many other countries use the term "parliamentary group"; for example, the UK Parliament has an all-party parliamentary group.