In wendy miami. Joining us now is gary a professor at stanford and the coauthor of this book will be no america how americas most dynamic population was poised to transform the politics of the nation. How do you define latino . Anyone that identifies the defendant. This is the population that is defended in the nation. And you said serving. What do you mean by that its based on the work that we do do in that decision on the research that focuses on what he knows. Primarily for political purposes but also for social and advocacy. We interviewed about 80,000 people over the last seven years and we asked them different questions in the government, politics, society, life in the United States, families and health and any topic you can imagine. As the 2010 census it is arrayed around a 17 . Of the population change quickly over time but it should be creeping up in the 20 range. Translate that into numbers. Theres about 55 million latinos in the United States. How many of them are citizens a