WASHINGTON — Rep. Elise Stefanik (R-NY) has revealed she’s publishing a book exposing the “far-left indoctrination, division, and moral rot” at Ivy League universities, as she draws a direct line from elite campus culture to the rise of Zohran Mamdani. Stefanik told The Post in an exclusive interview that her insider’s account, “ Poisoned Ivies ,” will raise the curtain on the decline of American higher education — but she noted it would also be “newsier than ever, given the administration’s