details of the scheme stretching almost 20 points are completely redacted. a signal that the investigation into hush money payments to two women who alleged affairs with donald trump remains ongoing. the documents highlight the lengths investigators went to to uncover cohen's illegal activity. on two occasions, a judge approved mueller's request to track the numbers of cohen's incoming and outgoing calls. they tracked the location of his cell phones, seeking a warrant for historical cell phone location information. used an electronic technique commonly known as trigger fish to determine the location. investigators also subpoenaed google, knew he was communicating using encrypted sig signaling apps. they uncovered cohen's consulting work, including seven payments linked to a russian oligarch.