his own attorneys rave reviews and then unloaded on house managers: democrat adam schiff e d jerry nadler. these two guys, these are major sleaze bags. they re very dishonest people. e> reporter: despite republican efforts to block witnesses, president trump claims he d love to see testify from current and former members of his administration, including former adviser, john bolton. but mr. trump said national security concerns, particularly in bolton s case, make that unlikely. he knows some of my thoughts. he knows what i think about leaders. what happens if he reveals what i think about a certain leader, and it s not very positive? i don t know if we left on the best of terms. i would say probably not. reporter: back in the u.s., the president s campaign manager, brad parscale, told ,cbs this morning impeachment is helping mr. trump s re- election bid. there are millions now are engaged to show up. and the president has a larger base now significantly from 2016. reporter: