his election. >> let's hope for the best, says nancy pelosi. tonight one week before the inauguration, senate intelligence committee announced an investigation attacking our election, including intelligence regarding links between russia and individuals associated with political campaigns. this is where you want, like, a historian to tell you "don't worry, don't worry, this only feels unprecedented. but we've been through something like this before." michael beschloss, nbc news presidential historian. should we not worry, not worry? does this only feel unprecedented? have we been through something like this before? >> no, not -- a little like this, rachel but maybe not entirely. in modern times, no, we have not had a situation where a new president comes in and there's already an investigation beginning although1973 when richard nixon was coming in for his second term there was somethg at, as you know, was