If it can be construed as threatening or coercive, it appears that many actually do: https://www.grubblawgroup.com/employee-rights-and-information-center/whist

If it can be construed as threatening or coercive, it appears that many actually do: https://www.grubblawgroup.com/employee-rights-and-information-center/whistleblowing-retaliation/retaliation-for-political-activity-state-laws/ https://www.grubblawgroup.com/employee-rights-and-informatio...