32
ALEXANDER v. SOUTH CAROLINA STATE CONFERENCE
OF THE NAACP
Opinion of the Court
Second, the dissent attacks the proposition that in redistricting cases the “good faith of [the] state legislature must
be presumed.” Miller, 515 U. S., at 915. But, as the citation
to Justice Kennedy’s opinion for the Court in Miller reveals,
that presumption is an established feature of our case law.
Third, the dissent claims that our decision is inconsistent
with Cooper, but the dissent’s argument is based on an imaginary version of that opinion. Nothing in Cooper is inconsistent with the venerable rule that a factfinder may draw
an adverse inference when a party fails to produce highly
probative evidence that it could readily obtain if in fact such
evidence exists. See Interstate Circuit, Inc. v. United States,
306 U. S. 208, 226 (1939); see also 2 J. Wigmore, Evidence
in Trials at Common Law §291, pp. 227–229 (Chadbourn
rev. 1979). “[T]his rule can be traced as far back as 1722”
and “has been utilized in scores of modern cases.” International Union, United Auto, Aerospace and Agricultural Implement Workers of Am. (UAW) v. NLRB, 459 F. 2d 1329,
1336 (CADC 1972). The dissent is correct that this inference “pack[s] a wallop” in such cases, post, at 10, but that is
only because an adequate alternative map is remarkably
easy to produce—as demonstrated by the fact that the Challengers introduced tens of thousands of other maps into the
record. Under such circumstances, if a sophisticated plaintiff bringing a racial-gerrymandering claim cannot provide
an alternative map, that is most likely because such a map
cannot be created. It would be clear error for the factfinder
to overlook this shortcoming.
Fourth, the dissent argues that the Challengers were
blindsided when the State argued at trial that its map was
drawn to achieve a political goal. Post, at 13–14. But there
is ample evidence that the State’s aim was well known before trial. See supra, at 21–22. And neither the Challengers nor the dissent can explain why the Challengers’ experts, who created thousands of maps that took into account
all sorts of variables, supposedly never even tried to create