The Justice Department has ended its investigation into the Federal Reserve and its Chairman, Jerome Powell, regarding a renovation project at the central bank's Washington headquarters. The Inspector General for the Fed has been asked to investigate the building costs overruns, which have been incurred by taxpayers. The decision allows for the approval of Kevin Warsh's nomination to chair the Fed, which has been stalled by opposition to the nomination by Senator Thom Tillis, who believes it does not appear that Powell committed any wrongdoing.