6 ALEXANDER v. SOUTH CAROLINA STATE CONFERENCE OF THE NAACP KAGAN, J., dissenting this case) up close. They can observe “the variations in demeanor and tone” that “bear so heavily” on credibility judgments. Anderson, 470 U. S., at 575. They know the ins and outs of often massive records. (This case boasts, for example, a 2,122-page trial transcript, a 1,694-page compilation of key deposition testimony, and (as one judge remarked) too many exhibits to fit in the courtroom. No. 3:21–cv–3302 (D SC), ECF Doc. 503, p. 23.) Chances are, then, that a trial court will do better factfinding than an appellate court parachuting in at the last moment. The clear-error standard is a recognition of comparative competence. And it is a forced dose of humility—a virtue which sometimes doesn’t come naturally to appellate courts. Apply that last point to this Court in particular. The clear-error standard tells us that when we disagree with a trial court’s view of the facts, we are the ones likely to be wrong. So we should make triple sure that we are correcting, not creating, an error before we reverse. Cooper illustrates how the ordinary clear-error standard works in districting litigation. The question there, as here, was whether a state legislature chose voters for a congressional district based on their race, or instead based on their past political choices. The three-judge District Court found that race accounted for the new district lines. On review, we decided the evidence “adequately support[ed]” that conclusion. 581 U. S., at 309. As that phrasing suggests, we nowhere claimed the court was actually right. To the contrary, we observed that in this “thoroughly two-sided case,” both views of the evidence were “plausible” and “permissible,” and we declined to choose between them. Id., at 299, 307, n. 6; see id., at 316–317 (“Maybe we would have evaluated the testimony differently had we presided over the trial; or then again, maybe we would not have”). Our decision followed from the deference we thought owed to the District Court. Under clear-error review, we noted, “we will not take it upon ourselves to weigh the trial evidence as if

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