I don't have Hulu, but have heard reviews of that documentary, where the history of the remark was featured. Bernie did have some trouble last year with complaints about how he ran previous campaigns in relation to how the women were treated.

Frankly, I think Biden and Sanders are too old to run and have reasonable expectations of full healthy terms. Warren is a few years younger than the other two, I think similar in age to Hillary (who would now be anticipating running for a second term if she had been inaugurated.)