Glad you found the review useful.
Indeed, the only content to the book was conventional wisdom of the most banal variety, and that was provided with a pro-Republican twist. In a sense, Eilperin is like an attorney conceding that her clients engaged in a nasty barroom brawl (with the Democrats being equally pugnacious and blameworthy, in her fantasy world) while pointedly neglecting to mention that they are on trial for robbing the US Treasury.
In the case of the Gingrich-DeLay generation of House Republicans, the trampling of democracy within the House--downplayed by Eilperin as mere partisan scuffling--has been purposeful, to enact policies advancing the interests of the richest 1% while neglecting the victims of Katrina, those without healthcare, or those who lost their jobs to "free trade" outsourcing.