In a union election campaign, a key role of the NLRB is to balance the free speech rights of the employer and the union against the free choice rights of the employees.

The National Labor Relations Board (NLRB) is responsible for overseeing union elections and ensuring that the election process is fair and impartial. This includes balancing the free speech rights of the employer and union with the free choice rights of employees. The NLRB plays a crucial role in preventing interference or coercion during union elections, which could compromise the employees' ability to make an informed choice. Therefore, the statement is true.