text_1: "Rick Santorum Says Howard Zinn, ""an anti-American Marxist,"" wrote ""the most popular textbook that's taught in our high schools in America."
text_2: "Santorum said that Zinn wrote ""the most popular textbook that's taught in our high schools in America."" While there is anecdotal evidence that Zinn’s work is popular among some high-school teachers, there is zero hard evidence to support Santorum’s core statistical claim -- that Zinn’s volume is taught in more high-school history classes than any other book. The claim contains an element of truth but ignores critical facts that would give a different impression."