My father, former Speaker of the House Newt Gingrich, has been in politics as long as I can remember. And as long as I can remember, media coverage about him has contained misstatements of facts. The vast majority are simple mistakes that are easily corrected, understood and rewoven into an ongoing storyline. But one of them seems to have taken on a life of its own, and simple corrections have not sufficed to set the record straight. Why does this happen? I can't be sure, but I suspect that the narrative created by these untruths proves to be so much...