CNN on Tuesday reported that the internal federal watchdog opened the case after receiving a complaint from the liberal watchdog group Campaign for Accountability.

The CNN report notes that the Office of Special Counsel is assessing if Zinke violated the Hatch Act, which prohibits political activity by government officials on the job.

“I can confirm that OSC received the complaint and has opened a case file. However, I'm unable to comment on or confirm whether an investigation has been opened,” Office of Special Counsel spokesman Zachary Kurz told CNN.

Source:

http://thehill.com/homenews/396281-office-of-special-counsel-opens-investigation-into-zinkes-maga-socks