Pro-Palestinian students, Antifa, and Communists at Columbia University escalated campus protests by occupying Hamilton Hall, breaking windows, and barricading doors after the university began suspending students who refused to leave a pro-Palestinian encampment. At least 52 colleges and universities are overrun at a time when law enforcement is being neutered by the hard left. Lisa Fithian is organizing at Columbia University. In numerous videos, she is seen leading the rampage into Hamilton Hall. SNIP