How about the “Washington Corruptions”, “Washington Pond Scum”, “Washington AC/DC”, “Washington Elites”, “Washington Whiners”, “Washington Sucks”, “Washington Satans”, etc.
I think the band AC/DC would be offended. The singer, Brian Johnson and the band's bassist are loyal listeners to Rush Limbaugh. The bassist Cliff Williams has called into the show on occasions.
I would go with “Washington Elites” or “Washington Establishment”.