Necessary Trouble is the definitive book on the movements that are poised to permanently remake American politics. We are witnessing a moment of unprecedented political turmoil and social activism. Over the last few years, we've seen the growth of the Tea Party, a twenty-first-century black freedom struggle with BlackLivesMatter, Occupy Wall Street, and the grassroots networks supporting presidential candidates in defiance of the traditional party elites.

Sarah Jaffe leads readers into the heart of these movements, explaining what has made ordinary Americans become...