I’m reminded of that omission as we head into the Democratic primary season. More women are seeking the party’s presidential nomination than ever before. And yet a few white men sit at the top of the polls and rake in big fundraising hauls. As candidates such as Sens. Kamala D. Harris, Elizabeth Warren, Kirsten Gillibrand and Amy Klobuchar lean in, maybe it’s time for some of their male competitors to find ways to lean out.