amid the controversy over president trump's condo lessons call to a widow of the u.s. soldier killed in niger, there are serious questions about the attack itself. an investigation is under way. chief of staff john kelly was asked about that this afternoon. >> the people that will answer those questions will be the people at the other end of the military pyramid. i'm sure the special forces group is conducting it. i know they're conducting an investigation. that investigation, of course, under the auspices of afterry comm ultimately will go to the pentagon. i've read the same stories you have. actually know a lot more than i'm letting on, but i'm not going to tell you. there is an investigation being done. >> well, kelly wouldn't say too much, understandably. but senator john mccain talked to cnn and other reporters today. he was more blunt about the growing question. >> on the niger, what does the