After yesterday's oral argument before the Supreme Court I had expressed optimism that the Court would find it unconstitutional to deny SSI benefits to U.S. citizens who live in Puerto Rico. Others, including a writer for the highly-regarded SCOTUSblog, felt otherwise.
Let me explain. There were a number of questions asked by the justices about whether finding this exclusion unconstitutional would trigger litigation claiming denial of equal protection because certain laws favor one state or one region over another. Although the attorney representing Mr. Vaello-Madero could have done a better job of expressing it, the answer seemed simple to me. This sort of lawsuit can already be brought but seldom is because all that is required to withstand an equal protection challenge is a "rational basis" for a law. That's a minimal requirement that would normally be met. It's just that in this case, the exclusion of SSI is so obnoxious that it cannot even meet a minimal requirement. If a statute is found that is as obnoxious as this one, then by all means the Court should find it unconstitutional but such a statute should be almost nonexistent. The states have representation in Congress. Puerto Rico doesn't. My interpretation of the questioning was that the Justices want to make sure they write a narrow decision finding it unconstitutional to deny SSI in Puerto Rico and were inquiring about how they should do it. Another interpretation would be that the justices were expressing reasons why it would be too dangerous to give relief to Mr. Vaello-Madero.
Anyway, listen to the oral argument yourself and tell us what you think.