It does seem unusual. What’s the point of an amicus curiae brief to a case that has been denied?
It’s really too bad they can’t just accept ONE of these cases, and then invite everyone else to join the party as amici curiae.
There are a number of issues. Where was Obama born? Were his parents every actually married? If not formally married, did they live together long enough to satisfy the criteria for common law marriage?
Was Obama adopted by Sotero? Was he a dual citizen. Did his parents relinquish his American citizenship, if he ever had it? Did Obama travel on foreign passports? Did Obama apply to college and/or law school as a foreign student?
All of these issues would appear relevant to the issue of whether he is constitutionally qualified to be president. Some of these lawsuits raise one issue, some another, but they should be brought together in one case and all considered, if only, worst case, to remove any doubts as to Obama’s qualifications.
The Supreme Court is not an investigative agency.