Elon Musk and His Anti-Union Tweet: NLRB Rules Explained

What do Tesla Inc., Barstool Sports, and The Federalist have in common? They’ve all been dinged by the National Labor Relations Board after tweeting anti-union comments.

The NLRB’s ruling against Tesla CEO Elon Musk’s tweet was one part of a decision against the company last week for unlawful union-busting conduct at its facility in Fremont, Calif.

The NLRB directed Tesla to delete Musk’s offending post on Twitter. This wasn’t the first time the agency has used this remedy. The board handed down the same sanction in November in a case involving the conservative online magazine, The Federalist. The agency also ...