Cruz Closes Gap On Trump In Iowa

Rep. Brad Wenstrup speaks with CNN's Jake Tapper

CNN's Miguel Marquez speaks with CNN's Jake Tapper

Jim Trusty, Ankush Khardori, CNN's Kaitlan Collins and CNN's Jamie Gangel speak with CNN's Jake Tapper

Bill Brennan, Stacy Schneider and Misty Marris speak with CNN's Jake Tapper

One reason for the rampant campus Israel protests, says NYU Professor Scott Galloway, is that "Protesting is the new sex. You get a dopa hit from gathering together in fighting off a perceived enemy [and] I think they're on the hunt for what I'd call a fake mortal enemy."

Campus protesters about Israel and Palestine have a free-speech right to be heard, says CNN's Michael Smerconish, but they do not have "a right to interrupt and overtake the ability of their classmates to complete their term and don their cap and gown."