Actually, the ‘Catholic vote’ was never Rick Santorum’s to lose
Actually, the ‘Catholic vote’ was never Rick Santorum’s to lose, according to Ed Kilgore, who has studied the exit polls:
[B]ased on prior evidence, there’s really no particularly reason to think the “Catholic vote” was ever Santorum’s to lose. His voting base has always been conservative evangelical Protestants, who also make up a high percentage of the voters fixated on making abortion illegal, a particularly strong Santorum demographic. I’m sure the JFK slur didn’t help, but this is one “surprise” in Michigan that really shouldn’t have been that surprising.