It took a while, probably because the sheer amount of crap spewed in Jerome Corsi's "The Obama Nation" took a while to wade through, but
FactCheck.Org has finally gotten through a thorough debunking of the book. The non-partisan group's article doesn't hide their contempt for the smear book:
...as a scholarly work, "The Obama Nation" does not measure up. We judge it to be what a hack journalist might call a "paste-up job," gluing together snippets from here and there without much regard for their truthfulness or accuracy.
Corsi promises in his preface "to fully document all arguments and contentions I make, extensively footnoting all references, so readers can determine for themselves the truth and validity of the factual claims." Some of Corsi's claims do come complete with citations. But even a casual glance at Corsi's lengthy endnotes reveals that his "sources" include obscure Internet postings (which are themselves completely unsourced) and opinion columns from various conservative publications. In fact, on four occasions, Corsi cites himself as a source. Where Corsi does cite news sources, he sometimes presents only those that are consistent with his case while ignoring evidence that doesn't fit the picture he paints.
A comprehensive review of all the false claims in Corsi's book would itself be a book. Our review touches only on a few of the more blatant examples.
JaBbA says check it out. I'm hearing a lot of these lies repeated by McCain supporters - it's important to be able to immediately debunk these claims with more than just a "that just isn't true".