By legitimizing bigotry and redefining so-called American values, a revived Klan in the 1920s left a toxic legacy that demands reexamination today. Boasting four to six million members, the reassembled Ku Klux Klan of the 1920s dramatically challenged our preconceptions of hooded Klansmen, who through violence and lynching had established a Jim Crow racial hierarchy in the 1870s South.

America is undergoing a massive experiment: It is moving, in fits and starts, toward a multiracial democracy, something few societies have ever done. But the prospect of change has sparked an authoritarian backlash that threatens the very foundations of our political system. Why is democracy under assault here, and not in other wealthy, diversifying nations? And what can we do to save it?

Robert Sapolsky’s Behave, his now classic account of why humans do good and why they do bad, pointed toward an unsettling conclusion: We may not grasp the precise marriage of nature and nurture that creates the physics and chemistry at the base of human behavior, but that doesn’t mean it doesn’t exist. Now, in Determined, Sapolsky takes his argument all the way, mounting a brilliant (and in his inimitable way, delightful) full-frontal assault on the pleasant fantasy that there is some separate self telling our biology what to do.

In Let Them Eat Tweets, best-selling political scientists Jacob S. Hacker and Paul Pierson offer a definitive answer: the Republican Party serves its plutocratic masters to a degree without precedent in modern global history. Conservative parties, by their nature, almost always side with the rich. But when faced with popular resistance, they usually make concessions, allowing some policies that benefit the working and middle classes. After all, how can a political party maintain power in a democracy if it serves only the interests of a narrow and wealthy slice of society?

From the United States and Britain to continental Europe and beyond, liberal democracy is under siege, while authoritarianism is on the rise. In Twilight of Democracy, Anne Applebaum, an award-winning historian of Soviet atrocities who was one of the first American journalists to raise an alarm about antidemocratic trends in the West, explains the lure of nationalism and autocracy. In this captivating essay, she contends that political systems with radically simple beliefs are inherently appealing, especially when they benefit the loyal to the exclusion of everyone else.

Few journalists working today have covered Donald Trump more extensively than Maggie Haberman. And few understand him and his motivations better. Now, demonstrating her majestic command of this story, Haberman reveals in full the depth of her understanding of the 45th president himself, and of what the Trump phenomenon means.

At a time when the very foundations of American democracy seem under threat, the lessons of the past offer a road map for navigating a moment of political crisis. In Democracy Awakening, acclaimed historian Heather Cox Richardson delves into the tumultuous journey of American democracy, tracing the roots of Donald Trump’s “authoritarian experiment” to the earliest days of the republic.

Bernie Sanders' 2016 candidacy expanded the scope of political possibility in the United States, putting socialism and class politics back on the map. His radical campaign - not just for the Democratic presidential candidacy but against "the billionaire class" - helped catalyze other transformative left-wing politicians like Alexandria Ocasio-Cortez to seek and win office, just as he inspired teachers from West Virginia to Los Angeles to win hard-fought, historic strike campaigns. Sanders has, in short, helped cohere a new movement in American politics.

American democracy is at an impasse. After years of zero-sum partisan trench warfare, our political institutions are deteriorating. Our norms are collapsing. Democrats and Republicans no longer merely argue; they cut off contact with each other. In short, the two-party system is breaking our democracy, and driving us all crazy.

Understanding Adolf Hitler's ideology provides insights into the mental world of an extremist politics that, over the course of the Third Reich, developed explosive energies culminating in the Second World War and the Holocaust. Too often the theories underlying National Socialism or Nazism are dismissed as an irrational hodgepodge of ideas. Yet that ideology drove Hitler's quest for power in 1933, colored everything in the Third Reich, and transformed him, however briefly, into the most powerful leader in the world.

Why did southern white evangelical Christians resist the civil rights movement in the 1950s and 1960s? Simply put, they believed the Bible told them so. These white Christians entered the battle certain that God was on their side. Focusing on the case of South Carolina, The Bible Told Them So shows how, despite suffering defeat in the public sphere with the triumph of the civil rights movement, white evangelicals continued to battle for their own institutions, preaching and practicing a segregationist Christianity they continued to believe reflected God's will.

The Fascism This Time elucidates a psychosocial model of fascism which predicted that Trump’s election would lead to immigrant concentration camps, an assault on democratic institutions, a global increase in authoritarianism, a massive rise in crimes against humanity, and the starvation of Yemen. It is an original and perceptive account tying the fascism this time to the overwhelming challenges with which the world is now faced.

For too long the Religious Right has masqueraded as a social movement preoccupied with a number of cultural issues, such as abortion and same-sex marriage. In her deeply reported investigation, Katherine Stewart reveals a disturbing truth: this is a political movement that seeks to gain power and to impose its vision on all of society. America’s religious nationalists aren’t just fighting a culture war, they are waging a political war on the norms and institutions of American democracy.

Human history is full of the stories of peasants, subjects, and tribes. Yet the concept of the “citizen” is historically rare — and was among America’s most valued ideals for over two centuries. But without shock treatment, warns historian Victor Davis Hanson, American citizenship as we have known it may soon vanish.

From a preeminent scholar of Eastern Europe and the prizewinning author of Chernobyl, the essential history of Russian imperialism. In 2014, Russia annexed the Crimea and attempted to seize a portion of Ukraine - only the latest iteration of a centuries-long effort to expand Russian boundaries and create a pan-Russian nation. In Lost Kingdom, award-winning historian Serhii Plokhy argues that we can only understand the confluence of Russian imperialism and nationalism today by delving into the nation's history.