It continues because Trump keeps putting out tweets regarding Megyn Kelly like an obsessed psychopath (somewhat redundant, I guess). If he could ever focus effort and communications on substantive plans rather than waste time on petty issues and his "ratings" obsession he might be able to reduce his 65% negatives sufficiently before the general election so he would actually have a chance of beating Hillary. Instead, like some insecure Hollywood has-been, he dwells on perceived personal slights and some people's understandable questioning of his self-proclaimed perfection (e.g., the ludicrous "nobody reads the Bible more than me"), and stews and blows up about people that don't "love" him.
It continues because Trump keeps putting out tweets regarding Megyn Kelly like an obsessed psychopath (somewhat redundant, I guess)...