and the judge tells him what rights he's sacrificing by virtue of pleading guilty. but to your first question, when does this process of cooperating begin, does it begin today? my guess is it's already begun. both parties have to be satisfied and they have probably begun talks on that. that would be typical. that can happen later, often it happens simultaneously with the plea, but it can happen later. but it's probably already begun. >> joyce, nbc news learned that michael cohen is facing perhaps three to six years of jail time. take us inside how that number is arrived at, is that because of the nature of the crimes he's pleading guilty to, the one campaign finance violation, the bank fraud, does that sound reasonable, does that seem to leave enough leverage for federal prosecutors to incentivize some cooperation if