Besides the prison sentence, Chief U.S. District Court Judge ordered Engavo to serve three years of supervised probation after his release from custody.
Federal law provides people can vote free from interference including intimidation and other acts to prevent or discourage people from voting or voting for the candidate of their choice.
Blackburn was initially charged with aggravated assault and felon in possession of a firearm in Natrona County Circuit Court before the case moved to federal court.