A London-based businessman who was investigated last year by the opposition research firm behind the so-called Trump dossier will testify before the Senate Judiciary Committee next week, The Daily Caller has learned.Bill Browder says that he will “definitely†be testifying about a complaint he filed with the Justice Department last year in which he accused Fusion GPS, the firm behind the dossier, and a former Soviet intelligence officer named Rinat Akhmetshin of violating the Foreign Agents Registration Act (FARA), a law requiring agents of foreign governments to disclose their lobbying and consulting work.Founded by former Wall Street Journal reporter Glenn...