One of Montgomery County’s most influential union leaders was acquitted on charges Thursday that he choked and pointed a gun at his wife after she refused to testify against him.

Gino Renne, president of the Municipal and County Government Employees Organization, faced up to 25 years in jail for charges that he assaulted his wife, Joan Renne, during a May fight at their New Market home. According to court records, he aimed a revolver at her head and choked her because she wanted to attend a birthday party.