Deputy Attorney General Rod Rosenstein threatened to “subpoena” emails, phone records and other documents from lawmakers and staff on a Republican-led House committee during a tense meeting earlier this year, according to emails reviewed by Fox News documenting the encounter and reflecting what aides described as a "personal attack."
http://www.foxnews.com/politics/2018/06/12/rosenstein-threatened-to-subpoena-gop-led-committee-in-chilling-clash-over-records-emails-show.html