In his classic 1954 treatise on his human comparison theory, the social psychologist Leon Festinger stipulated that human beings assess their social standing by comparing themselves to those around them and how those other people are evaluated and received. The corporate liberals who, despite being underrepresented in their own party’s electorate dominate the national Democratic Party apparatus, appear not to be familiar with Festinger. The DNC establishment’s reaction (revulsion, fear, rejection) to the rise of New York City mayoral candidate Zohran Mamdani is perfect evidence of this. Democrats pretend to be a “big tent” party. But it’s the centrists’ party. Leftists are only invited as long as they shut up and vote as they’re told—for centrists. Months after he won by a landslide, state and national Democrats like New York Governor Kathy Hochul, Senate Minority Leader/New York Senator Chuck Schumer, New York Senator Kirsten Gillibrand and House Minority Leader/Brooklyn Congressman Hakeem Jeffries have still not endorsed their own party’s candidate…