If nominated, will the public image of the jmfcsts be tarnished with Santorum?

[Franzl]

That’s one of the biggest dangers:  If nominated, Santorum, in the general, would do much damage to the image of social conservatives.  Christians, the world over, would become a laughing stock.
 

No, Christians won't be affected, just the American religious right. And most people are already aware of that group's (in)sanity, so nominating Santorum shouldn't change much.