Federal Reserve Chair Jerome Powell said the US central bank had been served grand jury subpoenas from the Justice Department threatening a criminal indictment, a dramatic escalation of the Trump administration's attacks on the institution. In a forceful written and video statement released Sunday evening, Powell said the action was related to his June congressional testimony on ongoing renovations of the Fed's headquarters. But he said the move "should be seen in the broader context of the administration's threats and ongoing pressure." In an interview with NBC News on Sunday, President Donald Trump denied having any knowledge of the DOJ's investigation into the central bank. Bloomberg TV's Opening Trade anchor Guy Johnson joined Caroline Hepker and Stephen Carroll to discuss. (Source: Bloomberg)