I am familiar with many Rabbinic associations, but I do not know of any "supreme" rabbinic authority in the U.S. Unlike Israel and Britain, the U.S. does not have a Chief Rabbinate.
Quite true. I don’t know who could have made them “supreme” except the organization itself.
Rabbi Antelman basically (so far as I understand it) believes that the cause of much of the evil of recent centuries is an occult conspiracy among heretics of the great religions. As a Jew he concentrates on the Sabbatians and their successors the Frankists because to him they are the culprits within the Jewish religion, though he also ranks the islamic Sufis as major bad guys.
Alouette: I know the US doesn't have a Chief Rabbinate (though it should, and it should be a sovereign Theocratic entity with full civil authority over all Jews as was the case until a few centuries ago), but the court of which Rabbi Antelman was (or is) Chief Justice is (or was) named the Supreme Rabbinic Court of America. I believe it was at one time headquartered in Baltimore, Md., though my memory could be faulty, and it could be somewhere else, or even nonexistent, by now.
I failed to mention in my previous post perhaps Rabbi Antelman's greatest eccentricities. He believes that subversive elements have influenced Orthodoxy to incorporate heretical elements into the Tefillot (prayers). For example, he says that the phrase which calls 'Af-Beri the "angel of rain" in the annual Prayer for Rain recited on Shemini `Atzeret is heretical (since G-d controls the rain directly, without using an angel) and should be expunged. He claims the beloved Unetanneh Toqef prayer (recited in the 'Ashkenazi rite on the High Holy Days) is also heretical, being based not on the martyrdom of Rabbi `Amnon of Mayence (whom he regards as a myth) but a Sufi martyr of many centuries earlier. To add to the insult, the Sufi was renamed "`Amnon" in the prayer in order to call up the image of `Amnon and Tamar.
He also says that the introduction of the sanctuary lamp in 'Ashkenazi synagogues (and its moving from the wall opposite the tabernacle to directly in front of it in Sefaradi synagogues) was introduced under the influence of "illuminism."
He is controversial in some places because he regards Jonathan Eibeschutz as a Sabbatian heretic who was responsible for teaching immoral acts in cloaked form in his Va'Avo' HaYom 'el Ha`Ayin. Of course, the universally beloved Rabbi Jacob Emden said exactly the same things about Eibeschutz. Emden is a hero to Antelman. And is he not to all Orthodox Jews, even those who reverence Eibeschutz as well?