Don McLeroy is a believer. He believes in God, in the Bible, and in the need to ensure that all children come to believe what he does. In The Revisionaries, airing 28 January on PBS, he makes his case again and again, in the office where he works as a dentist, in the church where he serves as a pastor, before assorted cameras, and as a member of the Texas State Board of Education. Scott Thurman’s documentary charts the inspiration SBOE Chairman McLeroy provides for other board members, like Cynthia Dunbar (who served from 2007-2011), as they insist that science classes in Texas teach intelligent design, given that evolution is just a “theory.” The “power” here has to do with Texas’ influence on textbook selections around the nation: it has to do with numbers, as textbook publishers endeavor to serve (profit from) those schools ordering the most books. Well aware of this power, the Texas School Board creationists in the 1980s made a case for teaching the “strengths and weaknesses” of evolution: this language is challenged in 2008, and The Revisionaries follows the battle between McLeroy’s Republicans and a set of opponents, including Eugenie Scott of the National Center for Science Education and Steve Schafersman, of Texas Citizens for Science.