U.S. District and Circuit Court Vacancies: Overview and Comparative Analysis [December 3, 2015] [open pdf - 320KB]
In the context of this document 'Congressional Research Service' is abbreviated 'CRS'. "This Insight provides data related to U.S. circuit and district court vacancies that existed as of December 1 of President Obama's seventh year in office. It also provides historical data related to circuit and district court vacancies that existed on December 1 of each of President Obama's seven years in office, as well as a comparative analysis of vacancies on December 1 during each year of the presidencies of his two immediate predecessors, Presidents George W. Bush and Clinton. Vacancies typically arise when a judge voluntarily retires or resigns, but can also occur as a result of a judge dying while in office, being impeached and removed from office, or when new judgeships are authorized by Congress. Vacancies Existing on December 1 of President Obama's Seventh Year in Office U.S. District Courts As of December 1, 2015, there were 53 U.S. district court vacancies across 38 (or 42%) of the nation's 91 judicial districts (not including territorial courts). […] Of the 53 vacancies, 9 vacancies have a nominee pending before the Senate Judiciary Committee, 13 vacancies have a nominee pending on the Senate 'Executive Calendar', and 31 of the vacancies have not yet had a nominee submitted to the Senate. For background information and analysis on the roles of the President and of home state Senators in the selection of U.S. district court nominees, see CRS Report RL34405, 'Role of Home State Senators in the Selection of Lower Federal Court Judges'."
CRS Insight, IN10407
Federation of American Scientists: http://www.fas.org/sgp/crs/index.html