Rick Santorum on Sunday took on separation of church and state.

"I don't believe in an America where the separation of church and state are absolute," he told 'This Week' host George Stephanopoulos. "The idea that the church can have no influence or no involvement in the operation of the state is absolutely antithetical to the objectives and vision of our country...to say that people of faith have no role in the public square? You bet that makes me want to throw up."

The GOP candidate was responding to comments he made last October. He had said that he "almost threw up" after reading JFK's 1960 speech in which he declared his commitment to the separation of church and state.

Santorum also on Sunday told Meet The Press host David Gregory that separation of church and state was "not the founders' vision."

The GOP candidate has been doubling down on religious rhetoric in an effort to court evangelical voters ahead of Super Tuesday. Last week, he questioned Obama's spiritual beliefs.

"[Obama believes in] some phony ideal, some phony theology ... not a theology based on the Bible, a different theology," he said.