I'd certainly prefer Kyl to Specter.
But having the triple-shot of
A) extreme social conservatives winning a primary and me having to watch them parade around on TV like they've done something important.
B) extreme social conservative losing yet another seat for our Party. (see Kansas and Oregon Gubenatorial races in 2002)
C) Democrats winning a seat, and me having to watch them parade around on TV like they've done something important.
....simply wasn't worth it.
And if you look at the seats... there is no guarantee that we will hold the Senate. We can't afford a loss.
No one thinks Leahy would be better. Most think the GOP will keep the Senate and probably BUILD on its majority. They want Specter to lose, have the D's pick that one up, and get Jon Kyl as the Judiciary Chair.