Introduction: Understanding Current Transformations In American Politics -- The Elite And Popular Roots Of Contemporary Republican Extremism / Theda Skocpol -- Dissecting The Conservative Triumph In Wisconsin / Alexander Hertel-fernandez -- Why Republicans Went Hard Right In North Carolina / Caroline Tervo -- The Overlooked Organizational Basis Of Trump's 2016 Victory / Michael Zoorob And Theda Skocpol -- How Trump Flipped Michigan / Sally Marsh -- Trump's Trump : Lou Barletta And The Limits Of Anti-immigrant Politics In Pennsylvania / Elizabeth Thom And Theda Skocpol -- From Obama Victories To A Gop Edge In Florida / Alexandra Caffrey -- Middle America Reboots Democracy : The Emergence And Rapid Electoral Turn Of The New Grassroots / Lara Putnam -- Saving America Once Again : From The Tea Party To The Anti-trump Resistance / Leah A. Gose, Theda Skocpol, And Vanessa Williamson -- The Surprising Advance Of Gun Control Politics After Parkland / Sophia Young -- The Texas-sized Impact Of Beto O'rourke's 2018 Senate Campaign / Eliza Oehmler And Michael Zoorob -- How Grassroots Resistance Networks Boosted Pennsylvania Democrats In 2018 / Maximilian Frank -- Citizen Activism And The Democratic Party / Theda Skocpol, Lara Putnam, And Caroline Tervo -- Conclusion: America At A Crossroads. Edited By Theda Skocpol And Caroline Tervo. Includes Bibliographical References And Index. Electronic Reproduction. Oxford Available Via World Wide Web.