Number: RS22854
Title: Filling the Amendment Tree in the Senate
Authors: Christopher M. Davis, Government and Finance Division 
Abstract: "Amendment trees" are charts that illustrate certain principles of precedence which guide the Senate amendment process. When all of the amendments permitted simultaneously by these principles have been offered and are pending, an amendment tree is said to be "filled," and no additional amendments may be offered until one or more of those pending is disposed of or laid aside. Given that the presiding officer traditionally affords the Senate majority leader or his designee priority over all others in being recognized, a majority leader can repeatedly secure recognition and "fill the amendment tree" himself by sequentially offering all of the amendments permitted under applicable circumstances. By doing so, a leader can "freeze" the amendment process in place, blocking additional floor amendments, at least temporarily. A majority leader might "fill the tree" in this way to prevent the offering of or voting on of non-germane amendments, to try speed consideration of a measure, or to control the subject or sequence of amendments that may be offered.
Pages: 4
Date: Updated April 2, 2008