When the Supreme Court overturned Roe v. Wade, it scrambled the landscape of abortion access in America, including in ways that one might not entirely expect. Many conservative states made the procedure essentially illegal — that part was predictable. But there’s also been this striking backlash in blue states, with many of them making historic efforts to expand abortion access, for both their residents and for women living in abortion-restricted states. And this has created all kinds of new battle lines — between states, and states and the federal government — involving travel, speech, privacy and executive power. It’s an explosion of conflicts and constitutional questions that the legal historian Mary Ziegler says has no parallel in modern times. She’s the author of six books on reproductive rights in America, including “Roe: The History of a National Obsession,” and the Martin Luther King Jr. professor of law at the University of California, Davis. “We’re seeing, from conservative and progressive states, moves to project power outside of their borders in ways we really haven’t seen in a really long time,” she told me. In this conversation, Ziegler explains the bifurcated abortion landscape that has emerged since the decision in Dobbs v. Jackson Women’s Health Organization overturned Roe. We discuss the different political and legal strategies conservative and progressive states are using to pursue their opposing goals; why the abortion rate has gone up, even as 14 states have implemented near-total bans on abortion; and how a second Trump administration could try to restrict access to abortion for all Americans, no matter what states they live in.

Over the course of Donald Trump’s presidency, the far-right fringe became a surprisingly visible and influential force in American politics. Eruptions of extremist violence — including the Unite the Right rally in Charlottesville, Va., in 2017 and the Jan. 6 Capitol insurrection — have made militant groups like the Proud Boys and conspiracy theories like QAnon into household names. On his popular cable news show, Tucker Carlson recently name-checked the “great replacement” conspiracy theory. And in a recent survey, nearly a third of Republicans agreed with the statement that “true American patriots may have to resort to violence in order to save our country.” The historian Kathleen Belew has spent her career studying political violence and the once-fringe ideas that now animate even right-of-center politics and news media. She is a co-editor of “A Field Guide to White Supremacy” and the author of “Bring the War Home: The White Power Movement and Paramilitary America,” which tells the story of how groups — including the Ku Klux Klan, neo-Nazis and Aryan Nations — coalesced into a radical white-power movement after the Vietnam War. These groups were united by a core set of beliefs about the threats of demographic change and governmental overreach, perceived hostility toward white Americans and the necessity of extra-political, often violent, action to achieve their aims. This is a conversation about how some of those ideas have seeped into mainstream Republican politics and what that could mean for the future of the party — and the country. It explores the radicalizing effects of Jan. 6, how irony and meme culture import far-right ideas into popular media, how warfare abroad can produce violence at home, why politics has started to feel apocalyptic across the spectrum, whether left-wing violence is as serious a threat as right-wing violence and more.