I recently reviewed White Backlash: Immigration, Race, and American Politics for Political Science Quarterly. You can access it here, but it is expensive. If you want to read my review, just send me an e-mail and I will send you a .pdf.
This book is very good. It covers much of the same ground as chapter 7 of White Voters in 21st Century America, but it is much more thorough. I will definitely assign it next time I teach my graduate course on demographic change and American politics.