discussing a replacement plan. despite asking his chief of staff just five months ago go to st -- ag o to stay on, but trump not addressing it. >> to go to work for a man who is pretty undisciplined, doesn't like to ride, doesn't read briefing reports, doesn't like to get into the details of a lot of things but rather just kind of says look, this is what i believe and you can try to convince me otherwise. >> reporter: now president trump has responded to the biting criticism from his former secretary of state writing in a tweet on his way back from kansas city that he is proud of mike pompeo the man who succeeded rex tillerson at the state department adding that his predecessor rex tillerson can't have the mental capacity needed. the president adds he was dumb as a rock and i couldn't get rid of him fast enough, he was lazy