Aaron has been doing investigation on these groups for months. It’s likely they copied his work.
I count two instances of the Daily Caller being used as source in that article alone and muuuuuultiple instances and references to the new book by Aaron Klein and Brenda J. Elliott.
And since the site finally got my hit by my going to look at the article you posted, and to see what else was there, I must mention that they twice reference the Daily Caller in the article you've posted as well, though it's all of the way at the bottom.
And don't forget about the new book.
Perhaps he was actually busy exposing "the relationship between the Herndon Alliance and the Obama White House" in the new book by Aaron Klein and Brenda J. Elliott for which he deserves all due credit.
I just don't see what you see.