[WOSG]

Jorge, See post 40. Toomey is more electable. JMHO.

Some Toomey / Specter articles:

http://www.humaneventsonline.com/article.php?id=3470

http://www.starktruth.com/comment.asp?articleid=438

http://www.taemag.com/issues/articleID.17977/article_detail.asp

http://www.phillyburbs.com/pb-dyn/news/33-03242004-270409.html
"An international labor union is urging its Democratic members in Pennsylvania to switch their voter registration to Republican to vote for Sen. Arlen Specter in his tough primary fight against conservative Rep. Pat Toomey."

[LdSentinal]

Perhaps it's a contrast with age that's doing in Specter with Republicans. Specter is in his 70s, while Toomey is a vibrant middle-aged man in his 40s. I'm not saying this is the sole factor or a primary one, but it could be contributing to this horse race.