I don’t think you folks quite get it. Benghazi was covered up by BOTH parties because both were involved. McCain, Graham, Boener McConnell, and many GOPe Republicans knew about the gun running operation to overthrow Libya, and they supported it. Stevens was murdered to cover up the operation.
The gunrunning operation was atually to beneiit the Syrian rebels -- who turned out to be iSIS.
And, you bet, McConnell, Boehner and Graham knew about it -- while McStain was actively involved.