Opinion of Sotomayor, Kagan, and Jackson, JJ., concurring in judgment
five Justices go on. They decide novel constitutional questions to insulate this Court and petitioner from future controversy. Ante, at 13. Although only an individual State’s action is at issue here, the majority opines on which federal actors can enforce Section 3, and how they must do so. The majority announces that a disqualification for insurrection can occur only when Congress enacts a particular kind of legislation pursuant to Section 5 of the Fourteenth Amendment. In doing so, the majority shuts the door on other potential means of federal enforcement. We cannot join an opinion that decides momentous and difficult issues unnecessarily, and we therefore concur only in the judgment.
I
Our Constitution leaves some questions to the States while committing others to the Federal Government. Federalism principles embedded in that constitutional structure decide this case. States cannot use their control over the ballot to “undermine the National Government.” U. S. Term Limits, Inc. v. Thornton, 514 U. S. 779, 810 (1995). That danger is even greater “in the context of a Presidential election.” Anderson v. Celebrezze, 460 U. S. 780, 794–795 (1983). State restrictions in that context “implicate a uniquely important national interest” extending beyond a State’s “own borders.” Ibid. No doubt, States have significant “authority over presidential electors” and, in turn, Presidential elections. Chiafalo v. Washington, 591 U. S. 578, 588 (2020). That power, however, is limited by “other constitutional constraint[s],” including federalism principles. Id., at 589.
The majority rests on such principles when it explains why Colorado cannot take Petitioner off the ballot. “[S]tate-by-state resolution of the question whether Section 3 bars a particular candidate for President from serving,” the majority explains, “would be quite unlikely to yield a uniform answer consistent with the basic principle that ‘the President
