<p>@padad: I have no idea whether it’s true that all states have that as a requirement for public school teachers. It doesn’t make much of a difference though, because we are talking about what states can do, not what they did do. The Constitution places outer limits on behavior, but it rarely compels it. States may, even if they don’t, discriminate in hiring in some jobs on the basis of citizenship. That is a difference in constitutional protection between citizens and non-citizens. The original question was whether the Constitution protected both groups equally. Even if states don’t take up the Court on its offer to discriminate, they still can, and therefore the Constitution does not treat the groups equally.</p>
<p>That we still have laws that treat groups unequally is not equivalent to our Constitution discriminates against non-citizens. Why else would we have the Supreme Court?</p>
<p>I’m afraid I don’t quite follow that post.</p>