I wonder if the field of remaining Republicans running for the primary have decided they need to distance themselves from and criticize Sen. Portman's stance on same-sex marriage? You know, say something like: I really admire a lot about Sen. Portman's legacy as a conservative, except for one big and important thing: he shouldn't have abandoned the traditional definition of marriage. Trust me, that's one way I will be significantly better than him. Maybe Timkin wouldn't say such a thing, even though she thinks it, because she's the one who got Portman's endorsement, and she wouldn't want to cross him by outwardly disagreeing with him about anything.
Or maybe there's some other issue that they might try to argue that Portman is less-than-consistently-conservative-about-it, but-I-will-be-perfectly-conservative-about-it. In other words, who's racing so hard to the far right that they would be willing to say: Portman is a RINO, and I promise you I won't be like that! I'll be better than him!
It does seem like the other candidates are trying to distance themselves from Portman
