KAREN NELSON MOORE, Circuit Judge. Sandra Albright asked Dr. Carl W. Christensen to treat her opioid addiction. Christensen administered three drugs that allegedly caused Albright severe emotional and physical harm. Albright (an Ohio citizen) sued Christensen (a Michigan citizen) and his practice in federal court. Defendants would have us apply Michigan’s affidavit-of-merit and presuit-notice rules for medical-malpractice actions in this diversity action; Albright insists that her claims sound in negligence and that these rules do not apply in the federal courts. We must confront two well-known cases—Erie Railroad Co. v. Tompkins, 304 U.S. 64 (1938), and Hanna v. Plumer, 380 U.S. 460 (1965)—to resolve this classic civil-procedure conundrum. We agree with Defendants that Albright has asserted a medical-malpractice claim. Hanna, however, requires us to hold that the Federal Rules of Civil Procedure conflict with Michigan’s affidavit-of-merit and presuit-notice requirements. These state rules therefore do not apply in diversity cases in federal court. Because the district court mistakenly invoked Erie and applied the presuit-notice rule in Albright’s case, we REVERSE and REMAND.

BERNICE BOUIE DONALD, Circuit Judge. Michael Lee Johnson was indicted for unlawful imprisonment, assault of a domestic partner by strangulation and suffocation, interstate domestic violence, witness tampering, and assault, in violation of 18 U.S.C. §§ 13, 113(a)(8), 113(a)(4), 2261(a), and 1512(b). A jury found Johnson guilty on all counts, and he was sentenced to 864 months’ imprisonment, followed by four years of supervised release. Johnson now challenges his conviction and sentence. For the reasons set forth below, we REVERSE and REMAND.

Robin Rick Manning, a Michigan prisoner proceeding pro se, moves this court for an order authorizing the district court to consider a second or successive petition for a writ of habeas corpus under 28 U.S.C. § 2254. See 28 U.S.C. § 2244(b).

. . .

Accordingly, we DENY Manning’s motion for an order authorizing the district court to consider a second or successive habeas petition.