erik prince's mysterious meetings in the seychelles with an unofficial representative of the united arab emirates. >> no one was aware from the trump team that i was there. it was private business that had nothing to do with the u.s. government. >> reporter: cnn has reported the purpose of that meeting was to arrange a possible back channel communication between the u.s. and russia, but the uae connection could expand mueller's investigation to concerns of additional foreign influence in the 2016 election. nader has been cooperating with investigators. the big question is what if anything mueller has in store to president trump, including whether he obstructed justice. >> i think really that obstruction piece will be the final element of this and that what we're going to more likely see is, you know, sort of these dots in the center being connected. >> reporter: looming large is whether the special counsel will demand a sit-down interview with president trump himself. >> i've always wanted to do an