If he were some fringe figure associated with the so called "Constitution Party" only, I wouldn't spend so much time paying attention to him. But he's not. He was the Vice-Chair of the Texas Republican Party. He is also, apparently, Senator Sam Brownback's hero. From the People for the American Way's Right Wing Watch:
"So far, Rep. Todd Akin, Rep. Bobby Jindal, and Sen. Sam Brownback have all appeared on Barton’s program and were effusive in their praise and flattery for Barton and his work.
"For instance, Sen. Brownback, appearing on October 17th
"Dave Barton is one of my big heroes. When I first got into the United States Senate, I was watching some of his videos and it made me mad that we walk over so much of the beautiful heritage that makes our history come to life and he’s done a great job of that , so I’m honored to be on with … one of my heroes, Dave Barton.
"The following day, Rep. Bobby Jindal appeared on the program and went on at length about the importance of Barton’s work, which is not too surprising considering that earlier this month, Barton traveled Louisiana with Jindal where the two made several joint appearances...."
The link also has a great line from Arlen Specter on Barton: "Even Republican Senator Arlen Specter has blasted his work, saying Barton’s 'pseudoscholarship would hardly be worth discussing, let alone disproving, were it not for the fact that it is taken so very seriously by so many people.'"
My thoughts exactly.