Jewish students from Columbia University who’ve experienced campus antisemitism will head to DC on Wednesday — when president Minouche Shafik gets grilled about what she’s doing to address the problem, The Post has learned. The students will also personally meet with Rep. Elise Stefanik, one of the members of the House of Representatives that will be flinging questions at the Ivy League leader. Stefanik’s pointed questions during prior hearings led to the ouster of the presidents of Harvard and the University of Pennsylvania, who gave fumbling answers about handling antisemitism. 5 Jewish students from Columbia University who’ve experienced campus antisemitism...