The Counsel shall select and fix the compensation of such Assistant Senate
Legal Counsels (hereinafter referred to as “Assistant Counsels”) and of such other personnel, within the limits of available funds, as may be necessary to carry out the provisions of this chapter and may prescribe the duties and responsibilities of such personnel. The compensation fixed for each Assistant Counsel shall not be in excess of a rate equal to the annual rate of basic pay for level V of the Executive Schedule under section 5316 of title 5
. Any selection made under this paragraph shall be made without regard to political affiliation and solely on the basis of fitness to perform the duties of the position. Any individual selected as an Assistant Counsel shall be learned in the law, a member
of the bar of a State
or the District of Columbia, and shall not engage in any other business, vocation, or employment during his term of service. The Counsel may remove any individual appointed under this paragraph.