Alice Sardell has written an informative, exhaustively researched case study of how the State Children’s Health Insurance Program (SCHIP) became a substantial feature of the fragmented American medical-care arrangements. Sardell describes how this federal—state program of financing the health care of low-income children emerged as a cause, prompted an unexpected degree of political contention, and in 1997 emerged as law from the gauntlet of American public policymaking. Commentators on the book, such as political scientist James Brasfield echo this description, citing the “clear analysis of how health insurance coverage for children became a national priority.” So does Frank Thompson, the political scientist expert on Medicaid now at Rutgers. Thompson commends this book for providing “new evidence and insights that go beyond the existing literature on SCHIP.”

For readers interested in the way this program emerged in the late 1990s and in the details of entrepreneurial leadership exhibited by the reform’s child advocates, Insuring Children’s Health offers a compelling historical account. For those most concerned with how the fractionated financing of American health care takes shape, the book provides the detailed, blow-by-blow account of information that few others will likely repeat. In short, this is a commendable case study of SCHIP’s origins and enactment. It is also a study of the difference that the leadership of a reform cadre seems to have made. Led by advocates committed to helping more American children get health care coverage, the SCHIP program expanded that goal substantially for low-income families unable to become eligible for the means-tested Medicaid program itself.

One can rightly ask more generally, however, what the “case study” in this book concerns. Is it an instance of the health-care financing for poor families best understood by reference to Medicaid—the means-tested health-financing program that came into being in 1965 and expanded greatly over the decades since? Sardell has not done that study, which means that her book cannot stand as a general guide to America’s version of medical care for poor families. Can this book be understood as a case study of American poverty politics, with emphasis on the tensions between those embracing the social insurance universalism of Medicare and Social Security and those committed to helping those most in need, whatever the cause? Or is this case study an example of some more general form of American political analysis, one demonstrating how important policy entrepreneurs are in explaining reform? Sardell’s emphasis in on the ways in which reformers exploited various policy frames to persuade lawmakers of this contention: namely, that helping America’s poorer children get medical-care financing need not represent a return to the “welfare” debates that were so contentious in the middle of the 1990s.

Sardell identifies her book as an example of the last category, a reform story that starts with policy legacies, proceeds with determined policy reformers, and emerges with a framing of the program that, in retrospect, seems to have been decisive. But, then, how can one tell that causal story from a single case study? Here, the issue at stake is how to combine description with explanation. Most stories of policy enactment have energetic advocates; advocacy coalitions in American politics are everywhere, contending with a crowded agenda of ideas on how the country could be better or how some group could benefit greatly from this or that policy reform. So, the explanatory role of some element like advocacy is limited, at most a necessary condition for enactment of a controversial measure, but not a sufficient condition.

For readers interested in how American politics deals with the financing, delivery, and regulation of American medical care, this book adds a case, but not one directly linked to that subject. When addressing American medical care and its politics, it is worth noting that political conflict is omnipresent, but not of a common sort. The institutional structure of American government, we have known for a long time, fragments policymaking, providing an advantage to the status quo and presenting powerful barriers to any fundamental, large-scale expansion of the American welfare state. The story of SCHIP is one illustration of how institutional features of American politics channel reform energy to this or that discrete effort to address a wrong.

Looked at that way, Insuring Children’s Health illuminates both why American medical financing is so complicated and partial and how changes in that web of programs emerge in fits and starts. It leaves one uncertain about how to integrate this case study in understandings of the broader welfare-state politics of the United States.