18
ALEXANDER v. SOUTH CAROLINA STATE CONFERENCE
OF THE NAACP
KAGAN, J., dissenting
knew they needed to achieve their partisan goal. And when
statistics experts reviewed the map, they found that the
State’s politics-only story could not explain the redistricting’s extreme racial disparity. In dismissing that strong
case, the majority cherry-picks evidence, ignores credibility
findings, misunderstands expert views, and substitutes its
own statistical theories. Its opinion gives not a whit of respect to the District Court’s factual findings, thus defying
the demands of clear-error review.
A
Start with the State’s chief mapmaker. William Roberts,
as the majority notes, was a “nonpartisan staffer with 20
years of experience” drawing maps for Republicans and
Democrats alike. Ante, at 8–9. He was good at what he
did—expert, “helpful,” and “precise.” J. S. A. 74a, 254a.
And also this—he was a veteran consumer of racial data.
On cross-examination, Roberts testified as follows:
Q: I think I heard the number of 75 to a hundred localities you’ve worked in over the past 20 years?
A: Yes. . . .
Q: Before this redistricting cycle, you always looked at
race data in the 75 to a hundred districts you worked
in, correct?
A: Yes. . . .
Q: Indeed, . . . you provided guidance to localities that
they should be looking at BVAP [Black Voting-Age Population] in drawing lines, correct?
A: That’s correct.
Id., at 204a–205a. The point of looking at BVAP, according
to the mapmaker’s testimony, was not to suppress the Black
vote. Rather, Roberts stated that he did so to achieve a panoply of lawful districting goals—like assessing Voting
Rights Act compliance and “help[ing] the general public understand the race of voters getting moved in and out.” Id.,