election hacking is, quote, the way of the future. meanwhile, sources telling cnn president trump's apparent unwillingness to publicly call out the kremlin for election interference has some administration officials feeling frustrated. cnn sara murray joins me now with this new reporting. hello, sara. you have been reporting this out all day. what are you learning from inside the white house? >> well, don, multiple senior administration officials say they've been struggling to convince president trump that russia still poses a threat to the integrity of america's elections. in fact, one official told me there's, quote, no evidence to show trump is actively engaging on this issue. now, the president still gets his daily briefings and that includes updates on russia. but beyond that, an administration official says there's no paper trail, no sked ulz, no readouts new yo, no bri documents, nothing to indicate the president is convening meetings or roundtables on this subject the way he has with other threats, for instance, threats against the u.s. power grid. on top of that, sources tell my