Book excerpt: This book argues that Latino representation in US legislative institutions is shaped not only by demographics but by legislative institutional design, as well as elite-driven methods, features of the electoral system, and the increasing mainstreaming of Latinos in American society. The election of Latino legislators in the United States is thus complex and varied. This book provides evidence on how successful Latinos have been in winning state legislative and congressional districts in which they have no natural advantage. In particular, this book demonstrates that Latino candidates benefit from higher percentages of Latino citizens in the state, more liberal citizenries and citizen legislatures. Jason Casellas argues that the legislatures most conducive to the election of Latino candidates are Florida, New Mexico and California, whereas the least conducive are the US House and New York.