believes there was a crime committed to underline what joe said, we don't know who, if it was donald trump or someone else in his orbit, but what would it take to seat a grand jury in this case? >> well, a grand jury has both a charging function and an investigative function. so as long as cy vance believes he has credible allegations that a crime may have been committed, that would be a sufficient basis to convene those grand jury. but i think it's a significant step because we've long known that cy vance has documents. so he is now likely completed his review of those documents. if there were nothing there, nothing to suggest to him that a crime has been committed, there would be no need to convene this grand jury. the fact that he has says to me that he has found sufficient evidence in those documents to believe he should take that next step. and in new york, it's necessary to present all of the evidence before a grand jury. it's not enough to rely on hearsay the way it is in federal court. so they need to hear from enough