Employer means any employer or any group or association of employers
engaged in an industry affecting commerce (a) which is, with respect to
employees engaged in an industry affecting commerce, an employer within
the meaning of any law of the United States relating to the employment
of any employees or (b) which may deal with any labor organization
concerning grievances, labor disputes, wages, rates of pay, hours of
employment, or conditions of work, and includes any person acting
directly or indirectly as an employer or as an agent of an employer in
relation to an employee but does not include the United States or any
corporation wholly owned by the Government of the United States or any
State or political subdivision thereof.
