Noah is passionate about United States history and believes part of his mission involves getting others "hooked on history," especially young people. Noah's fascination with U.S. Presidents happened as a result of the 2000 election. He was intrigued as a kindergartner about the electoral college, the party system, and campaigning. Noah's thirst for knowledge and love of books sent him on a lifelong quest to know more about his country and how to be a Republican. Noah keeps busy speaking all over the United States.

McCullough has appeared on The Tonight Show with Jay Leno five times as a political correspondent. In addition to his appearances on The Tonight Show, he has also been featured on Today, Martha Stewart, The Oprah Winfrey Show, DaySide with Linda Vester, and MSNBC. He appeared on Late Night with Conan O'Brien in October 2008.