The NLRB conducted a certification election, and the union won by a vote of 22–20. Management refused to bargain with this union. The reason for this refusal to recognize the union as the employees’ bargaining agent was that the union had used “recognition slips” as a means of indicating the employees’ support for the union. Several employees testified that they signed these slips to avoid the payment of the initiation fee. Further, at least a few employees indicated that they thought they had to vote for the union since they had signed a recognition slip. Should the NLRB set aside this election of the union? Explain.