Firm in 'Putin's chef' case challenges appointment of special counsel Robert Mueller

Concord Management and Consulting was accused in Russia probe in election Internet trolling operation.
ref:https://www.washingtonpost.com/local/public-safety/firm-in-putins-chef-case-challenges-appointment-of-special-counsel-robert-mueller/2018/06/25/98b1c458-789f-11e8-aeee-4d04c8ac6158_story.html