This is a wide-ranging, theoretically rich and empirically focused look at whether politicians simply "follow" the polls or whether politicians use polls to help "sell" proposals to the public. The answer is both, of course, but Jacobs and Shapiro explain how and why public leaders develop their own policy views, and how the public's acceptance of those views shape how policies are ultimately formed. Politicians are "trustees" in the Burkean sense, but how they explain their actions have to be placed in a "delegate" framework. Their case study on health care policy is especially instructive. This book won the 2001 Goldsmith Book Prize, it should be read by serious students of the media and politics.