MARTHA MACCALLUM: There are some that say that the seeds of distrust in the election are sort of paving the way for the president to say that it was illegitimate over the course of the next few years if he decides that he wants to run again. We know that on Hillary Clinton's side, she told Joe Biden not to concede under any circumstances in this election so it's been fraught on both sides from day one and who knows what we would be seeing on their side if the outcome had been different.