Under the NLRB (national labor relations board) you have the right to organize a union without harassment or retaliation. The NLRB protects the following rights:
Employees have the right to attempt to form a union where none currently exists, or to decertify a union that has lost the support of employees.
Examples of employee rights include:
Forming, or attempting to form, a union in your workplace
Joining a union whether the union is recognized by your employer or not
Assisting a union in organizing your fellow employees;
Refusing to do any or all of these things.
To be fairly represented by a union
Your employer CANNOT:
Spy on you
Coercively question you
Threaten you or bribe you regarding your union activity or the union activities of your co-workers
Terminate, discipline, demote, or penalize you in any way for engaging in these activities