The United States Constitution (Article I, Section 5, Clause 2) provides that "Each House [of Congress] may determine the Rules of its proceedings, punish its members for disorderly behavior, and, with the concurrence of two-thirds, expel a member."
People were hired without restrictions. That's the correct answer.
D. Critics were horrified to learn that the government expected an eventual Communist victory.
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A person in the middle ages would go see barbers.