An Ohio Republican lawmaker facing multiple domestic violence allegations has a documented history of aggressive and volatile behavior extending back to his school years, according to a new CNN investigation published Monday.

The CNN report draws on interviews with more than half a dozen former classmates and acquaintances who described Representative Max Miller as someone who exhibited unstable outbursts and hostile, insulting conduct from a young age, frequently while under the influence of alcohol. These accounts add further detail to a growing body of accusations against the congressman, who now faces abuse claims from three separate women: his ex-wife Emily Moreno, a former girlfriend, and another woman who alleges Miller pushed her down a staircase.

River McWilliams, a former classmate, characterized Miller as "hotheaded." According to the report, McWilliams recalled that as a high school athlete, Miller displayed temperamental reactions not uncommon among teenage players — such as throwing his helmet to the ground following a poor at-bat — but that his demeanor deteriorated significantly at parties where alcohol was involved. "He would be quick to kind of like start fights and instigate stuff… He was that kid," McWilliams said.

Another classmate, Blair Kurit, stated that Miller largely avoided friendships with female peers. "He was belligerent... and definitely misogynistic back then," Kurit said. She recounted an incident at a party where Miller reportedly told others he intended to join the Army so he could "shoot some Arabs."

CNN also obtained police body-camera footage in which Emily Moreno, Miller's ex-wife, becomes visibly emotional while describing an alleged incident in which Miller held a gun to her head. Moreno was separately questioned by police during an investigation into their daughter's broken collarbone. No charges were filed in connection with that inquiry, and there are currently no open investigations involving either parent.

In a contentious 26-minute interview with CNN's Jake Tapper, Miller firmly denied all allegations, asserting that each of the three accusers is fabricating their claims. He maintained that House Speaker Mike Johnson and other Republican leaders continue to support him fully.

Miller declined to withdraw his candidacy prior to the ballot deadline, effectively eliminating any opportunity for the Republican Party to field a replacement candidate. Under Ohio's election rules, once that filing window closes, a party has no straightforward mechanism to substitute another nominee — meaning Republicans are now tied to Miller's candidacy regardless of how the allegations evolve. Recent polling indicates that his district, a reliably Republican area in the exurban Cleveland region, could shift toward Democrats as the scandal continues to unfold. The district's potential competitiveness comes at a time when narrow House margins have made individual seats pivotal to control of the chamber, raising the stakes for party leaders weighing how long to maintain their support.