Cite as: 602 U. S. ____ (2024)
19
Opinion of the Court
sufficient. Nothing in our case law requires the State to
adopt novel methodologies in analyzing election data. Indeed, the State plausibly argues that its data was more
than good enough for its purposes because it showed partisan preferences at the sub-precinct level and also accounted
for variations in voter turnout. Reply Brief 9, 11; J. S. A.
93a.
In sum, the District Court’s heavy reliance on these four
pieces of evidence was seriously misguided in light of the
appropriate legal standard and our repeated instructions
that a court in a case such as this must rule out the possibility that politics drove the districting process.
C
Once these weak inferences are set aside, all that the
Challengers have left are four expert reports. But these reports are flawed because they “ignored certain traditional
districting criteria” such as geographical constraints and
the legislature’s partisan interests. Allen v. Milligan, 599
U. S. 1, 34 (2023). Because these reports do not replicate
the “myriad considerations” that a legislature must balance
as part of its redistricting efforts, they cannot sustain a
finding that race played a predominant role in the drawing
of District 1’s lines. Id., at 35. We will discuss each of the
Challengers’ four experts in turn.
Dr. Kosuke Imai. The report of the Challengers’ first expert, Dr. Kosuke Imai, provides no support for the decision
below because Dr. Imai made no effort to disentangle race
from politics. Dr. Imai developed a computer algorithm
that generated 20,000 maps of the State’s congressional districts that complied with the one person, one vote rule. This
algorithm did not take race into account, and it sought to
respect traditional redistricting objectives such as contiguity and compactness. The Challengers assert that these
maps prove that race drove the State’s redistricting process