Cite as: 589 U. S. ____ (2019) 5 Per Curiam index limits means that limits which are already suspiciously low” will “almost inevitably become too low over time.” 548 U. S., at 261. The failure to index “imposes the burden of preventing the decline upon incumbent legislators who may not diligently police the need for changes in limit levels to ensure the adequate financing of electoral challenges.” Ibid. So too here. In fact, Alaska’s $500 contribution limit is the same as it was 23 years ago, in 1996. 1996 Alaska Sess. Laws ch. 48, §10(b)(1). In Randall, we noted that the State had failed to provide “any special justification that might warrant a contribution limit so low.” 548 U. S., at 261. The parties dispute whether there are pertinent special justifications here. In light of all the foregoing, the petition for certiorari is granted, the judgment of the Court of Appeals is vacated, and the case is remanded for that court to revisit whether Alaska’s contribution limits are consistent with our First Amendment precedents. It is so ordered.