Republican senators are rallying behind Sen. Bernie Moreno (R-OH) after he publicly accused his former son-in-law, Rep. Max Miller (R-OH), of abusive behavior, adding to pressure on the Ohio representative as he faces a looming deadline to remain on the November ballot.

Moreno made on-camera remarks Tuesday about the contentious divorce and child custody battle between his daughter and Miller, saying his family “fears what this guy is capable of.” Miller has denied all allegations of abuse and wrongdoing, including claims that he poured hot water on his ex-wife, held a gun to her head, and broke his daughter’s collarbone.