Watching the Republican primary debates can feel like a study in self sabotage. In the latest one, which Donald Trump skipped, the candidates spent most of their time attacking one another — not the guy who is 50 points ahead in the polls. But there is a logic to it. Candidates are trying to position themselves as the party’s alternative to the former president. And to do that, they have to push one another aside and unite the roughly 40 percent of Republicans who are still up for grabs. This week, we ask anti-Trump Republicans: What’s stopping their coalition from getting on the same page? And with the early contests fast approaching, is it too late? We travel to a debate night watch party for Nikki Haley in New Hampshire and check in with Bob Vander Plaats, an influential Iowa evangelical and supporter of Ron DeSantis.