Cash is an advocate against gun violence and police brutality. In 2016, she was fined $500 by the Association, along with her teammates and players from two other WNBA teams, for wearing warm up shirts that read "#BlackLivesMatter" and "#Dallas5", both serving as references to gun violence. In a post-game debriefing following the incident, Cash stated:I think it’s a shame that we keep seeing people that want to make this movement as something that’s violent. Five cops gave their lives up trying to protect a peaceful movement. And in this country, I do believe that you can assemble peacefully and protest against injustice. So until the system transforms, we cannot sit here and act like there is not a problem here in America.She said that part of what motivated her to take a stance against police violence was the Civil Rights Movement era stories her grandmother told her. She recognizes that police brutality is an aspect of racial activism, and she fears that because police are able to kill unarmed people without facing arrests, a regression to pre-Civil Rights laws and practices may occur for black people. In addition, her brother, Kevin Menifee, was allegedly beaten by police officers, who broke his nose.