Mark Judge reviews the book here. An excerpt:

…Yet those who refuse to acknowledge her commitment to eugenics are impervious to evidence. They are the same ones who will be shakingtheir heads at Liberal Fascism: The Secret History of the American Left, From Mussolini to the Politics of Meaning, the devastating new book by Jonah Goldberg, an editor at National Review. The sad paradox is that the more the Left rend Goldberg apart, avoiding the book like anthrax because they assume we are in Ann Coulterville, the more they will make his point. Goldberg has marshaled a staggering amount of evidence to conclude, as the first chapter has it, that “everything you know about fascism is wrong.” Mussolini was weaned on anarcho-socialism (his father Alessandro was a socialist and anarchist). Mussolini and the Italian Fascist party were, in the early years, not anti-Semitic—in fact, the party included Jews. As a young man, Mussolini had carried in his pocket a medallion of Karl Marx, whose influence—combined with the bizarre syndicalist philosophy of George Sorel and a Nietzschean contempt for Christianity—resulted in Italian fascism, a mix of myth-making, prophecy about the rise of the working class, and a relentless determination to aggrandize more and more power for the state. German fascism was not far different, which is why Hitler himself, as Goldberg puts it, was “a man of the left.”

Update: Correction, from a reader:

Jonah,
I tried to click on the CT review, but their server may be down (probably as a result of your link)!
Anyway, I think the review is actually in the magazine Books & Culture, not Christianity Today. It’s confusing, but both are at christianitytoday.com. CT the magazine ends in “…/ct” and B&C ends in “…books.” Both are owned by the same parent company.
I trust Gene Veith will end up writing a nice review for World Magazine. I saw your comment posted on his blog.