Zohran Mamdani puts the social in socialism and rides a blue wave to victory. He’s got the MAGA faithful sweating in their too-tight pleather hammer pants. Trump called New York’s newly elected mayor Zohran Mamdani a “little communist,” and a “communist lunatic.” For Ted Cruz he’s a “literal, Karl Marx-quoting, America-hating jihadist.” Mamdani’s biggest crime? …