Warren Campaign Faces Unfair Labor Charge by Sanders Supporter

Sen. Elizabeth Warren’s 2020 presidential campaign is facing an unfair labor practice charge alleging its confidentiality agreement with staffers unlawfully prevents them from speaking out on workplace issues.

The Aug. 13 challenge to the campaign’s non-disparagement clause was filed by Jason Legg, a tenant’s rights attorney in Denver, Colo., who supports Sen. Bernie Sanders (I-Vt.) for the Democratic nomination. The National Labor Relations Board accepts charges even if the filer isn’t an employee of the organization alleged to be violating federal labor laws.

At least three Democratic campaign offices have unionized—starting with Sanders in March—and are working towards collective bargaining ...