When CNN hired Sarah Isgur, a former Jeff Sessions spokeswoman and now staff writer at The Dispatch, last year to be a political editor at its Washington bureau, left-wing media types put on a full-court press to smear her professionalism. The CNN newsroom — which, last I looked, included former Obama official Jim Sciutto — was reportedly “demoralized” by her very presence. Conservatives, and it’s probably fair to say that Isgur is a pretty moderate one, aren’t welcome in mainstream journalism. We don’t need to go through all the numbers and polls to stress this point. Journalists have long jumped back and forth between Democratic Party politics and media gigs. The job is the same. The venue is different.