Nancy Pelosi said she is prepared to launch impeachment proceedings against Trump if he does not resign Washington: US House Speaker Nancy Pelosi said Friday she spoke with the nation's top military leader about ensuring that an "unhinged" President Donald Trump does not launch a nuclear attack in his final days in office. The top Democrat in Congress said she talked with Joint Chiefs Chairman Mark Milley "to discuss available precautions for preventing an unstable president from initiating military hostilities or accessing the launch codes and ordering a nuclear strike." The extraordinary acknowledgement that Pelosi has spoken with military brass about restricting the president's powers enshrined in the US Constitution came in a letter to her Democratic colleagues, and highlight the tensions in Washington over Trump's remaining days in the White House.