Health and Human Services Secretary Robert F. Kennedy Jr. shared pictures of himself and his family swimming in Rock Creek in Washington, D.C., despite decadeslong warnings from the National Park Service not to do so.

For a day out with grandchildren, the former presidential candidate Robert F Kennedy Jr chose Washington's Rock Creek, despite enormous evidence of its water being contaminated with harmful bacteria.

Health and Human Services Secretary Robert F. Kennedy Jr. shared photos of himself and his family at Washington, D.C.'s Rock Creek on Sunday.