The House Republicans’ impeachment investigation into President Joe Biden was dealt another significant blow when former Rudy Giuliani aide Lev Parnas, known as his Ukraine “fixer,” during a televised hearing declared two current Republican lawmakers were “doing the bidding” of Russia. Parnas testified that U.S. Rep. Pete Sessions (R-TX), who was present at the hearing as his name was mentioned, and U.S. Senator Ron Johnson (R-WI), “were doing the bidding for the Russians.” Democratic Ranking Member of the House Oversight Committee, Jamie Raskin, asked Parnas, “At what point did Mr. Giuliani b…