He told a receptive, packed auditorium that in America, under President Barack Obama, fundamental freedoms of family and faith are under attack.
"Their secular views are being imposed upon people of faith," Santorum said.
And he said protecting family values is what his campaign is all about. But it's not the only issue.
"Are economics important? You bet? Are jobs important? You bet," he says.
Santorum got big cheers when he vowed to scrap President Obama's health care plan.
He never mentioned Mitt Romney by name, but Santorum said he was the only candidate who can take on the president over the core issues of the day.
You can watch the entire rally and the Q&A from local residents below