Regardless of how you or I feel about Trump, I trust McMaster, and he said nothing inappropriate happened, and he was there. When this anonymous source wants to come forward ad put his or her name on his or her claim, as McMaster has, maybe I'll give it a thought. Until then, it's BS, period.
As for the Comey memo, anyone in LE knows that if you have information that a supervisor, subordinate or co-worker committed a crime, or even an ethics violation, you have to report it, or you are guilty of a violation at least, maybe even a crime. Besides, it doesn't fit the Comey way. remember, he testified that coming forward to reveal information about re-opening the Clinton investigation was really bad, but concealing it was much worse, so why would he conceal the obstruction charge against Trump? It doesn't fit. it's more cherry-picked, anonymous information that proves nothing but is pure innuendo and speculation, and this Press will intimate and speculate the worst, which is why this stuff is done.
Have you noticed that none of the career politicians in Washington are doing anything to help the American people, none of Trumps agenda is moving forward, the only thing they are working on, Dems, Media and many Republicans, is getting Trump out of office.
You trust McMaster? He came out and stated that "no classified info was discussed between trump and the russians." He then stated he knows because he was present for the meeting. The very next day he came out and said Trump did not know it was classified info. So he admitted to flat out lying the day before and that gives you a basis to trust the guy?