Pro-Trump messages written in chalk at Emory University is one sign of college Republicans’ impact

“If you’re listening right now, you’re one of the lucky ones that survived the Chalkening.” That’s how the fraternity-culture and southern-college-culture brand Old Row opened its weekly podcast on Wednesday. The line, fit for an apocalypse movie, referred to a campaign by Donald Trump’s young supporters on college campuses. Their weapon of choice in their crusade…