Agency finds that Elon Musk tweet violated federal labor law

FILE - In this March 9, 2020, file photo, Tesla and SpaceX Chief Executive Officer Elon Musk speaks at the SATELLITE Conference and Exhibition in Washington. Musk has tweeted his way into trouble with another federal agency, this time the National Labor Relations Board. The board on Thursday, March 25, 2021 found that a Musk tweet in May of 2018 unlawfully threatened employees with loss of stock options if they decided to be represented by a union. Board members ordered Tesla to make Musk delete the tweet and stop threatening employees with loss of benefits for supporting a labor organization. (AP Photo/Susan Walsh, File)