Embattled Rep. Max Miller (R-Ohio) said Tuesday that he'll file paperwork for an ethics investigation — into himself — amid a series of allegations involving his ex-wife. The big picture: Miller, a former Trump aide in a competitive reelection race, is facing domestic abuse allegations, which he has denied. What they're saying: "I have absolutely nothing to hide," Miller said in a Tuesday X post. - "I am looking forward to my colleagues reading everything for themselves," Miller wrote, stating he'd provide the committee with "all necessary documents." Driving the news: Miller's ex-wife Emily Moreno has accused Miller in court filings of hitting and threatening her. Miller denies the allegations and has sued her for defamation. -…