Republicans are standing by Ohio Rep. Max Miller despite severe domestic abuse allegations from his ex-wife, exposing a double standard that could cost them a winnable seat.

• Max Miller's ex-wife, Emily Moreno, alleges in divorce and custody court filings that he held a gun to her head, threw hot water on her, and broke their 2-year-old daughter's collarbone.
• She is the daughter of Republican Senator Bernie Moreno, who has stayed publicly silent, calling it a private family matter.
• Republicans like Jim Jordan are defending Miller and campaigning for him, while they demanded Democrat Graham Platner quit over his own allegations.
• The same pattern shielded Rep. Cory Mills, who still serves in Congress despite similar accusations going nowhere.
• Ohio, once solidly red, is now competitive, and keeping Miller on the ballot may hand Democrats a real shot at the seat.

Outlook: An August 5th deadline looms to replace Miller on the ballot, but Republicans appear set to stick with him and risk the general election.