. >> eucom oxus another programs online at booktv.org. >> one of the things that always grabbed me washe report within encapsulating the mentality pretty well. it was done by mark kaye. it's like, look, i don't do research because charities produced goods. things like product, buying a microwave, i think research actually captures the prevailing ethic among donors. part of my book is really a type of plea. there are good and bad and some in the middle. many read them so that they survive and the others don't. >> with little accountability and measure of effectiveness, ken stern looks at the world of nonprofit on "after words", sunday at 9:00 p.m., part of booktv this weekend on c-span2. >> you're watching the tv on c-span2. we are on location in las vegas at the annual freedom fest conference. one of the speakers here is senator rand paul. and also the author of this book, the tea party goes to washington. senator, this book came out when you were first elected. in the year 2010, you wrote it and it came out in 2011. how would you assess the tea party today and its influence in washing