Sanders is not my favorite. I find him to be a loose cannon, in some ways reminiscent of Donald Trump in terms of being a maverick and not following established rules. I get a sexist vibe off him as well. However, if he is anything, he’s principled, and in a he-said / she-said contest between Sanders and Warren, I believe Sanders. Warren I find generally slippery and very capable of bending and stretching the truth. Did Sanders say something about the difficulty of a woman winning president? Probably. Did he say what Warren says he said and he denies? Highly doubtful. I think it’s about as true as it is true that Warren is a Native American who did not benefit from claiming said ancestry when hiring on at Harvard.