The political strategist Sarah Longwell has dedicated the last seven years to understanding why so many Republicans find Donald Trump irresistible, and how they might be persuaded to vote for someone else. Longwell is a lifelong Republican who became a leader of the Never Trump wing of the G.O.P., and her communications firm, Longwell Partners, has been running weekly focus groups including swing-state voters, undecided voters, and discontented Trump supporters. These are the people who might determine the winner of the 2024 election. “I think that Donald Trump has done more damage to himself with a lot of these people who held their nose and voted for him the second time; [after] January 6th, a lot of them are going to leave it blank,” Longwell told David Remnick. “At the end of the day, what this election will come down to is the Republicans who get there on Kamala Harris, and the ones who just refuse to get there on Trump.” Longwell publishes the political news site the Bulwark, and was also the first female national board chair of the Log Cabin Republicans, which represents L.G.B.T.Q. conservatives.