Scott Walter at Capital Research.org:

In her last book, Dark Money: The Hidden History of the Billionaires Behind the Rise of the Radical Right, Mayer bewails the “100 biggest known donors in 2014,” who spent “nearly as much money on behalf of their candidates as the 4.75 million people who contributed $200 or less.” Who were those terrible donors? Mayer says, “A few of the biggest spenders were now Democrats.”

Check her source in the endnotes, and you find how many “a few” equals:

Donors who gave exclusively or primarily to Democratic candidates and groups held down 52 of the top 100 spots—including by far the biggest donor of disclosed 2014 cash: retired San Francisco hedge fund billionaire Tom Steyer.

I chose Mayer’s “a few” as the worst lie in the book, but I had to write a long review to catalog all her other distortions and falsehoods. One book chapter had previously appeared as a New Yorker hit piece, and my earlier dissection of that partisan journalism drew this response from John Hinderaker of Powerline:

Walter’s article was perhaps the most devastating refutation of a magazine article I have ever read. In a calm, dispassionate manner, he laid waste to Mayer to a degree that in a more just world would end her career in journalism.

Hinderaker asked readers to leave comments at Mayer’s blog, begging her to respond, but of course she refused. Silence is golden when you’re a wealthy New Yorker from a famous banking family, writing for prestige media whose business model is to give an overpaid, underinformed audience only what it wants to hear.