Is United States Supreme Court dicta which interprets the U.S. Constitution authoritative and controlling on Federal and State Courts, or may Federal Circuit Courts choose to adopt State Courts opinions and not follow this Court's opinions set forth in dicta?

If United States Supreme Court dicta is authoritative and controlling, did the 9th Circuit violate Article VI, Clause 2 ("the Supreme Law of the Land") of the U.S. Constitution in failing to follow this Courts language in Mickens v. Taylor, 535 U.S. 162, 171, 152 L. Ed. 2d 291 (2002)?

Did the State of Arizona violate the Sixth Amendment of the Constitution when it removed "Retained Counsel of Choice" representing Mr. Leal in a criminal prosecution, due to a mere theoretical division of loyalties construed as an actual conflict?

Did the Ninth Circuit err in the denial of Mr. Leal's 28 USC 2254 petition claiming that the petition did not state a valid claim of the denial of a constitutional right, when the trial and appellate record is supported by United States Supreme Court dicta and facts?

Did the State of Arizona violate the "common law marital communications privilege" recognized by the United States Supreme Court, when the trial court admitted and played in open court (as evidence) for the Trial Jury to hear Mr. Leal and his wife's telephone communication? (United States Supreme Court dicta in: [Trammel v. United States, 4460 U.S. 51, 100 S. Ct. at 912; Blau v. United States, 340 U.S. 332, 333, 71 S. Ct. 301, 302, 95 L. Ed. 306 (1951) Wolfe v. United States, 291, U.S. 7, 13, 54 S.Ct. 279, 280, 78 L.Ed. 617 (1934); also Katz v. United States, 389 U. S. 347, 353, 88 S.Ct. 507, 512, 19 L. Ed. 2d 576 (1976)]

Should this Court exercise its supervisory power to decide the conflicting decisions of the Ninth Circuit - U. S. District Court of Arizona: Miguel Daniel Lea] v. Charles L. Ryan, Warden and Attorney General for the State of Arizona, and the Tenth Circuit - U. S. District Court of Colorado: United States v. Neal, 532 F. Supp. 942 (D.C. Cob. 1982); regarding the marital communications privilege and whether the husbands privilege to communicate in confidence with his wife entitles him to suppress his statements to her in the phone conversation? Apparently, this is a question of first impression in the Federal Courts.

Did the Ninth Circuit err in deferring to the State Court's finding that Mr. Leal had objected at trial to the denial of his request to present one of his sisters as a rebuttal witness with respect to the State's theory that flight demonstrated guilt, but the objection failed to state a constitutional ground, therefore, Mr. Leal's claim that his constitutional rights (due process, compulsory process, and to present a defense - per the Sixth and Fourteenth amendments of the U.S. Constitution) were waived?

Did the Ninth Circuit err in adopting the States summary background facts, (which omitted over two years of trial delays

Is SCOTUS dicta authoritative?