“Ten years ago, the genre was a major source of intellectual energy on the right, and the site of a publishing boom, with conservative imprints popping up at industry giants like Random House and Penguin. But after a decade of disruption, uneven sales, and fierce competition, many leading figures in the conservative literati fear the market has devolved into an echo of cable news, where an overcrowded field of preachers feverishly contends for the attention of the same choir.”