“We birthed a nation from nothing — I mean, there was nothing here,” Mr. Santorum said at the event. “I mean, yes, we have Native Americans, but candidly, there isn’t much Native American culture in American culture.” Days after the event, Mr. Santorum walked back his comments on CNN’s “Cuomo Prime Time.” “I misspoke,” Mr. Santorum told the program’s host, Chris Cuomo. “I was talking about the founding of our country. I had given a long talk about the Constitution, the Declaration of Independence and the ideas behind those, and that I was saying we sort of created that anew, if you will. And I was not trying to dismiss Native Americans.”