investigating four former trump campaign associates. michael flynn, paul manford and carter page known to u.s. intelligence. all four have denied improper contacts. we have obstacles and they find the conclusive evidence and the communication between trump associates and the russians have seized given all the public focus on the ties in the trump campaign and the russian officials have changed the methods of communications making monitoring that much more difficult according to the officials we talked to. >> thanks very much. i want to bring in the political analyst and karl bernstein. the author and cnn terrorism analyst and formerly a cnn official and cnn political