Per a comment the Levin article, Tucker used to have this on his Amazon profile:
"CORRUPT RIVALS AND THEIR FAKE NEWS
The author's ground-breaking works have presented hard-hitting truths that have angered old school traditionalists, including one corrupt Civil War publisher/editor and his cronies and authors. By launching fake negative Amazon reviews, they hope to silence the author's fresh "NEW LOOK" historical truths. Emboldened by keyboard courage and anonymity, this good old boy establishment has been behind years of posting negative fake Amazon reviews. Revealing the source and proof of agenda, the editorial (instead of history) obsession of these negative reviews (ironically, repetitive reviews that complain of repetition and emphasize "don't read this book," "don't waste your time" and "needs to be reduced" to reveal the fixated financial and non-historical concerns of a single-minded publisher/editor) that concentrate on mundane editorial minutiae to reveal the true source: an unethical editor/publisher and rival obsessed with making profits and twisting the truth. Just so happens that this publisher's many books (relatively cheap small-sized glossy paperbacks) all have disproportionately inflated 5-star Amazon reviews to reveal the inverse corruption of the attack reviews on the author's books. This corrupt entrenched establishment hides in the dark shadows of cyber space, while attempting to manipulate/abuse Amazon and social media to fool the public."