WASHINGTON — The chairman of the Senate Judiciary Committee demanded Tuesday that Attorney General Merrick Garland immediately fire the director of the beleaguered federal Bureau of Prisons after an Associated Press investigation detailing serious misconduct involving correctional officers.Sen. Dick Durbin’s demand came two days after the AP revealed that more than 100 Bureau of Prisons workers have been arrested, convicted or sentenced for crimes since the start of 2019. The AP investigation also found the agency has …