Fox news, NYTimes, and NPR also said he resigned. What term should be used?
http://www.foxnews.com/politics/2017/07/06/office-government-ethics-boss-walter-shaub-resigns-after-trump-clashes.html
This is more "Standard Operating Procedure" that the Liberal media is twisting to serve their agenda , the man's contract expired and he decided not to renew.