The correct answer to this open question is the following.
Although you did not provide further context or reference, we can comment on the following.
The elite deviance, as defined by Inderbitzen, that currently poses the greatest challenge to US society is Elite Deviance in US Politics through corruption acts and social control.
Michelle Inderbitzen is an Associated Professor of Sociology in the School of Public Policy at the University of Oregon State, in Corvallis, Oregon.
She co-authored an interesting book titled "Deviance and Social Control," with Randy Gainey and Kristin Bates. In the book, Inderbitzen explains deviant behaviors in different fields such as teh US politics, and how these behaviors affect society.