Nancy Pelosi believes she has one more great task left in her long career—saving American democracy. If, as expected, the Democrats take control of the House of Representatives on November 6, Pelosi may become the first Speaker to regain the position in more than six decades. And at what a moment: Pelosi and the House Democrats believe—and a huge number of voters agree—that they are all that stands between the future of the republic and the broad-based assault on democratic values led by Donald Trump, one of the few people in Washington who’s demonized even more than Pelosi is.