While Santorum's profile in Congress as a social-issues crusader bought him entree with influential evangelical conservatives in Iowa, it's his unhesitating attack on liberals that seems to be fueling his rise in internal polls by rival campaigns.

"Let's look at colleges and universities," Santorum said in the ballroom of the restored Frank Lloyd Wright Park Inn Hotel on Mason City's town square. "They've become indoctrination centers for the left. Should we be subsidizing that?"

Santorum tossed out Harvard University's motto, "Veritas," Latin for truth. "They haven't seen truth at Harvard in 100 years."