. >> i want to bring in former florida attorney general bill mccollum. good to see you. ly fired national security adviser, john bolton, apparently he's in talks to possibly take part in this impeachment deposition. how significant might his testimony be? >> hello. >> hi. bill, can you hear me okay? >> i can hear you now. i couldn't hear you before. thank you. >> let me reask that question. so, if the national security adviser, former, john bolton, who apparently is in talks -- his attorneys are in talks with lawmakers about his potential testimony if he does indeed testify, how potentially significant do you believe that might be? >> well, i think it's important for him to testify if he wants to and can do that, but i don't know how significant it would be. he certainly knows a good deal about the situation, the background of the particular matter involving the ukraine and that phone call and his opinions, he stated them publicly. listen, my view of this, fred, is that even if this is all true what taylor said the other day, what mr. taylor said, what maybe john bolton i