Will the Democratic ticket ever be two white men again?

[Mr. Morden]

It *probably* won't happen again for a while.  I do see one plausible scenario for an all-white male ticket in 2020 though: If Bernie Sanders runs and wins the nomination, he's probably less likely than most of the others to weigh identity politics as a consideration in his veep pick, and (because he's old and has to consider the possibility that he won't make it through his full term) would most likely pick someone who's ideologically aligned with him and has ample experience to take over as president, if necessary.  Not sure who that would be, but Sherrod Brown is one possibility.