Anderson Cooper 360º: One-on-one with Chris Christie

Former New Jersey Gov. Chris Christie, a former Trump ally who launched his presidential bid in June, has made it his mission to sharply attack Trump. Christie told Anderson he has reached the number of donors that the Republican National Committee requires candidates to meet in order to make the first GOP primary debate stage in August. Christie also weighed in on how FBI Director Christopher Wray, who he recommended for the job, did at a congressional hearing today.