I wouldn't say anyone would be pleased with the prospect of getting a self-confessed Democrat instead of a wannabe Democrat (Specter). The shame of this is that we did get one of those Dems as a result of this race two years later when Santorum lost because of his misplaced support of this RINO.
Snarlin is such a vitriol magnet, both Santorum and Dubyah would have been much better off, short and long run, to have sat the primary out.
I believe that primary endorsements by a sitting President are unusual. Don’t know about sitting Senator endorsements.
IAE, they screwed up, bigtime.