by the United States government, United States Code — Chapter 4…
“ Authority of officers of Congress over Congressional employees (a) Qualifications determinations; removal and discipline Each officer of the Congress having responsibility for the supervision of employees, including employees appointed upon recommendation of Members of Congress, shall have authority— (1) to determine, before the appointment of any individual as an employee under the supervision of that officer of the Congress, whether that individual possesses the qualifications necessary for the satisfactory performance of the duties and responsibilities to be assigned to him ”
