For conservatives generally and the Republican Party in particular, now is a time of intense soul-searching. For the first time in a dozen years, Republicans have lost control of Congress. As a result, they are being forced to reexamine who they are and what they stand for. Leviathan on the Right: How Big-Government Conservatism Brought Down the Republican Revolution, a new book by Cato scholar Michael D. Tanner, provides an incisive analysis of the roots and core beliefs of big-government conservatism and the major currents that fueled its growth—neoconservatism, the Religious Right, supply-side economics, national greatness conservatism, and Newt Gingrich–style technophilia—and offers a detailed critique of its policies on a wide range of issues.  Leviathan on the Right is a clear warning that, unless conservatives return to their small-government roots, the electoral defeat of 2006 is just the beginning.