White House spokesman Sean Spicer says US President Donald Trump has "nothing further to add" about a tweet suggesting that there might be tapes of conversations between him and fired FBI director James Comey. OPINION: Monday, October 22, 1973, was the observance of Veterans Day in Washington, so most congressional offices were closed. However, Senator Charles McC. Mathias Jr and his top aides, including yours truly, gathered that day at his office to review the unprecedented events that had rocked the city 48 hours earlier. Washington had never witnessed a Saturday night like that. Then-US President Richard Nixon had ordered special prosecutor Archibald Cox fired for refusing to back off his pursuit of the White House Watergate tapes. The same evening, Nixon had accepted the resignations of Attorney General Elliot Richardson and Deputy Attorney General William Ruckelshaus, both of whom refused to discharge Cox. Nixon directed Solicitor General Robert Bork, ...