GOP leaders vow 'action' as Columbia University swarmed by anti-Israel agitators

House Republican leaders are vowing to push back on anti-Israel protests that are once again taking over college campuses as students return for the fall semester.

It comes as activists have already begun defacing property and staging demonstrations at Columbia University in New York City, which was a hotbed of controversial activity in the spring.

"There should be a zero tolerance policy for antisemitic violence on campus that targets Jewish students. If universities won’t hold protestors accountable...