House Republicans still want Glenn Simpson, the co-founder of the firm behind the anti-Trump dossier, to comply with their subpoena to appear on Capitol Hill despite his plans to invoke Fifth Amendment protections, a GOP House Judiciary Committee aide told Fox News on Friday. The tension with the Fusion GPS co-founder comes as new details emerge about just how widely distributed the unverified and politically funded dossier was back in 2016. A Fox News review of congressional testimony, British court records, emails and other documents indicate that at least five sources worked through other government agencies or fed the dossier...