and here to lead off our discussion on a friday night, susan page, washington bureau chief for usa today. john allen, nbc news national political reporter. former u.s. attorney barbara mcquade, and the aforementioned peter baker, chief white house correspondent for "the new york times." peter, i hate to begin on a friday night with a process question, but i must. what will happen to everything under way if, indeed, a second whistle-blower comes up and has to be processed and spoken to and heard from on the hill and perhaps has even more pointed evidence than the first? >> well, it's very interesting of course because this would serve to validate to some extent the first whistle-blower as a witness to what happened. the president of course has spent a lot of time trying to discredit the whistle-blower, saying his information is only secondhand, is hearsay. never mind the fact that most of the things in the whistle-blower complaint that we've all now seen has been actually verified