I saw a lot of stuff, mostly hostile to Christian perspective, and to Barton personally because he was not an academically trained historian, but in all the things you posted, and that were posted in the blog, I did not see one thing that proved a factual error on Barton’s part.
Provide evidence where Barton has made a historical mistake, including the name, date, place and time where it was said, the exact content of what was said, references substantiating the same, and if an error was made, what you portend was the true factual statement that should have been made.
Google “David Barton lies” and you will find the documentation you require if you are not afraid of the source.