jo jose? >> 3:00 eastern time, an important announcement we should be looking of the for. >> reporter: yes, sir. >> mark potter, thank you very much. one of the largest prisoner discharges in u.s. history is expected at the end of this month when the federal bureau of prisons sets 6,000 prisoners free. the release has been expected for months since the sentencing commission changed its sentencing guidelines last year. our chief legal correspondent ari melber is with me to talk about the story. let's talk about this release. it's a separate move from the president's push for clemency. >> that's correct, this is separate from what the president can do under his executive authority. they have been working on this. when people talk about this long running war on drugs in federal policy, which means trying to go after drug offenses and even low level and having harsh penalties