“Several social trends in the United States (US) suggest an increasing risk for political violence. Little is known about support for and personal willingness to engage in political violence and how those measures vary with lethality of violence, specific circumstances, or specific populations as targets…Coupled with prior research, these findings suggest a continuing alienation from and mistrust of American democratic society and its institutions.Substantial minorities of the population endorse violence, including lethal violence, to obtain political objectives. Efforts to prevent that violence, which a large majority of Americans already reject, should proceed rapidly based on the best evidence available. Further research will inform future prevention efforts..”