The House Ethics Committee has opened an investigation into Rep. Max Miller, an Ohio Republican, to review whether he engaged in domestic violence or abuse, or used illegal drugs, according to a committee press release dated August 4, 2026.

The committee announced the review in a joint statement by its chairman and ranking member — the panel's top Republican and top Democrat — issued under Committee Rule 18(a), which governs the committee's authority to investigate allegations of misconduct by House members. NPR reported the story the following morning on Morning Edition, with reporting by Steve Inskeep. NPR

Miller asked the committee to investigate the domestic abuse allegations surrounding his reelection bid, according to NPR. The allegations that Miller abused his ex-wife and their young child emerged in recent legal filings, CBS News reported. CBS News

Miller has denied the allegations. The National Desk and KYUK both reported his denial on August 4.

The review covers three specific areas: whether Miller engaged in domestic violence, whether he committed abuse, and whether he used illegal drugs, according to The Hill and The National Desk. The joint statement did not detail the factual basis for each line of inquiry. The Hill

Miller faces growing calls to end his reelection campaign as the allegations have circulated, ABC30 reported. The precise sources of those calls were not specified in the available reporting.

Under House Rule 18(a), the committee must notify the subject of an investigation within 90 days of authorizing a review. The joint statement from the chairman and ranking member is the standard way the committee publicly discloses that a review is underway without judging the outcome. The committee routinely notes that the mere fact of a review does not indicate any violation occurred.

The allegations surfaced through legal filings connected to a custody dispute, according to CBS News. The National Desk characterized the matter as tied to a custody battle. The specifics of those filings, including when they were submitted and in which jurisdiction, were not detailed in the available reporting. The National Desk

Miller, who represents Ohio's 7th Congressional District, is seeking reelection. The Ethics Committee review will run at the same time as his campaign, meaning the investigation will unfold publicly as voters evaluate his candidacy.

The committee has not announced a timeline for completion. Under committee rules, investigations can extend for months, and the panel can create an investigative subcommittee if it determines formal proceedings are warranted. The August 4 press release indicated only that the review is ongoing.

The Miller review arrives as the Ethics Committee has been active on multiple fronts. The panel's decision to proceed with a formal review, rather than refer the matter to the Office of Congressional Ethics — an independent office that conducts preliminary assessments of misconduct allegations — suggests committee leadership determined the allegations met the threshold for direct action under Rule 18(a). That determination does not amount to a finding of wrongdoing; the committee's own statement notes the investigation may ultimately find no violation occurred.

The political stakes for House Republicans are notable. Miller's seat is not currently rated as competitively at-risk in the available reporting, but an open ethics investigation into an incumbent during a campaign cycle introduces uncertainty that party leadership will have to manage. Calls for Miller to withdraw, if they intensify, would force Republican leadership to decide whether to weigh in publicly before the committee concludes its work.

Miller's decision to request the committee probe himself is notable as a procedural matter. Members who refer themselves to the Ethics Committee typically do so to move the matter into a process with defined rules and confidentiality requirements, giving them a formal venue for examining the allegations. Whether that strategy will contain the political fallout depends largely on the committee's timeline and what the investigation ultimately finds.