Opinion of the Court
Why isn’t that enough to demonstrate that today’s result isn’t totally unexpected? How many people have to foresee the application for it to qualify as “expected”? Do we look only at the moment the statute was enacted, or do we allow some time for the implications of a new statute to be worked out? Should we consider the expectations of those who had no reason to give a particular application any thought or only those with reason to think about the question? How do we account for those who change their minds over time, after learning new facts or hearing a new argument? How specifically or generally should we frame the “application” at issue? None of these questions have obvious answers, and the employers don’t propose any.
One could also reasonably fear that objections about unexpected applications will not be deployed neutrally. Often lurking just behind such objections resides a cynicism that Congress could not possibly have meant to protect a disfavored group. Take this Court’s encounter with the Americans with Disabilities Act’s directive that no “‘public entity’” can discriminate against any “‘qualified individual with a disability.’” Pennsylvania Dept. of Corrections v. Yeskey, 524 U. S. 206, 208 (1998). Congress, of course, didn’t list every public entity the statute would apply to. And no one batted an eye at its application to, say, post offices. But when the statute was applied to prisons, curiously, some demanded a closer look: Pennsylvania argued that “Congress did not ‘envisio[n] that the ADA would be applied to state prisoners.’” Id., at 211–212. This Court emphatically rejected that view, explaining that, “in the context of an unambiguous statutory text,” whether a specific application was anticipated by Congress “is irrelevant.” Id., at 212. As Yeskey and today’s cases exemplify, applying protective laws to groups that were politically unpopular at the time of the law’s passage—whether prisoners in the 1990s or homosexual and transgender employees
