But this is actually a sticking point in the Paul campaign: Some people in his circle want him to swing his weight behind McCain once the primaries are over. At the moment, they’re being overruled. ~Dave Weigel

I have to assume that they will keep being overruled, and the idea of Paul endorsing McCain is risible.  But it is telling that there are some in the campaign who want this to happen.  My first guess would be that they are the same ones who wanted throw long-time Paul loyalists to wolves like Kirchick* over the newsletters business to satisfy squeamish supporters.  I can think of few things that would wreck the grassroots enthusiasm Rep. Paul has stirred up, but an endorsement of McCain might do it.    

* Wolves are actually decent animals, so it’s not really fair to compare them to Kirchick.