service
(d) For the purpose of this section, “service” means service, whether or not continuous, as Director of the Federal Judicial Center, and any service, not to exceed five years, as a judge of the United States, a Senator or Representative in Congress, a congressional employee in the capacity of primary administrative assistant to a Member of Congress or in the capacity of staff director or chief counsel for the majority or the minority of a committee or subcommittee of the Senate or House of Representatives, or a civilian official appointed by the President, by and with the advice and consent of the Senate.