House GOP leaders are opening an investigation into the Office of Special Counsel over claims the federal agency contributed to alleged retaliation against two IRS whistleblowers central to a criminal investigation into Hunter Biden. 

House Speaker Mike Johnson (R-LA) joined other GOP leaders in sending a letter to Karen Gorman, acting principal deputy special counsel, Monday requesting a briefing to determine whether the agency was involved with an alleged “smear campaign” against whistleblowers Gary Shapley and Joseph Ziegler. The request comes after Shapley and Zieglar have become central to lawmakers’ investigations into Biden over allegations the Department of Justice gave favorable treatment in its investigation of him.