proposals which call for more high-profile trump administration witnesses. >> democrats case is this deficient, it's not for the judge and jury to cure it here in the senate. the house should not impeach on this basis in this first place. >> reporter: chuck schumer requested subpoenas for, among others acting chief of staff mick mulvaney and former national security adviser john bolton. >> what is leader mcconnell afraid of? what is president trump afraid of, the truth? but the american people want the truth. >> reporter: for schumer to win this argument he needs four republican senators to vote with democrats, but so far the eight moderate republicans in schumer's sights are showing little signs ever defecting. >> i'll talk to colleagues. listen to the leadership and giving it a great deal of thought. >> reporter: so schumer and mcconnell are no closer to