(National Review) On December 4 Kirsten Gillibrand joined the pageant of presidential hopefuls jockeying for the 2020 Democratic nomination. Not formally but in the way these things are often done now with a bold statement calculated to go viral that would energize supporters and attract mainstream attention. That statement on Twitter was liked over 32000 times: Kirsten Gillibrand ✔ @SenGillibrand Our future is: Female Intersectional Powered by our belief in one another. And were just getting started. 31.9K 7:06 PM - Dec 4 2018 Twitter Ads info and privacy 20.1K people are talking about this Twitter Ads info and privacy The tweet instantly became controversial. Was she saying that men wouldnt be included in her view of the future? Van Jones asked her if she could understand how people might hear it that way. Yes and they just dont get it" Gillibrand replied unhelpfully. And what to make of the appearance of the word intersectionality"? The tweet immediately felt like a cultural touchstone a statement that signaled a shift in what is expected of a candidate seeking the leadership of the Democratic party. The shift that Gillibrands tweet signaled is the rise of a class of progressive activists who now hold unprecedented power on the American left. Their power is not in numbers which are few. It comes instead from a monopoly on legitimacy. They are kingmakers holding the moral authority to anoint Democratic leadership. They are the arbiters of good and evil the marshals of the social-media messaging war that prospective candidates are desperate to win. They are why Gillibrand a former pro-gun immigration hawk felt that she could whip up excitement by invoking a term that remains almost wholly unknown outside progressive academia. They also might be killing the Democratic partys chance to win the presidency.